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lc-04-buried-routes

1.000
3/3 tests· long-context
Challenge · difficulty 3/5
# Service-route resolver

Below is a read-only snapshot of our internal `mesh/` package — 40 service-routing
modules. Each module defines its own `ROUTES_NN` table mapping upstream status codes to the
downstream service that handles them.

Your task: implement `solution.py` with a function

```python
def resolve(code: int) -> str:
    ...
```

that reproduces **exactly the routing table defined in module `svc_20`** (the
`ROUTES_20` dict). For a status code present in that table, return its service name;
for any other code, return `"unknown"`.

Rules:
- Use the table from `svc_20` ONLY. The other modules are decoys with different tables.
- Do NOT import from the snapshot (it is not packaged). Inline the mapping you need.
- Return the literal string `"unknown"` for unrouted codes.

The snapshot follows.

---

# ============================ svc_00.py ============================
"""Service routing for the svc_00 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_00 = {
    1174: 'willow-quorum-11',
    1146: 'yarrow-atlas-40',
    1729: 'verde-prism-11',
    1930: 'cobalt-prism-11',
    1941: 'slate-cipher-73',
    1167: 'tundra-relay-69',
    1115: 'ivory-broker-85',
    1089: 'basal-harbor-84',
    1091: 'nimbus-lattice-55',
    1156: 'rill-cipher-32',
}


def resolve_00(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_00.get(code, "unknown")


def is_routed_00(code: int) -> bool:
    return code in ROUTES_00


# ============================ svc_01.py ============================
"""Service routing for the svc_01 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_01 = {
    1403: 'xenon-atlas-54',
    1384: 'amber-ledger-30',
    1580: 'jade-anchor-25',
    1561: 'ember-harbor-86',
    1905: 'pyrite-quorum-38',
    1695: 'onyx-ledger-86',
    1006: 'zephyr-ledger-72',
    1948: 'quartz-spindle-17',
    1591: 'cobalt-spindle-37',
    1806: 'yarrow-warden-93',
}


def resolve_01(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_01.get(code, "unknown")


def is_routed_01(code: int) -> bool:
    return code in ROUTES_01


# ============================ svc_02.py ============================
"""Service routing for the svc_02 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_02 = {
    1702: 'tundra-atlas-55',
    1936: 'willow-lattice-48',
    1674: 'amber-harbor-24',
    1038: 'quartz-gateway-69',
    1223: 'loom-prism-50',
    1414: 'cobalt-warden-30',
    1187: 'amber-warden-77',
    1767: 'onyx-beacon-86',
    1686: 'umber-ledger-37',
    1452: 'nimbus-gateway-90',
}


def resolve_02(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_02.get(code, "unknown")


def is_routed_02(code: int) -> bool:
    return code in ROUTES_02


# ============================ svc_03.py ============================
"""Service routing for the svc_03 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_03 = {
    1894: 'ember-cascade-41',
    1518: 'cobalt-anchor-61',
    1739: 'willow-cipher-96',
    1239: 'quartz-cascade-57',
    1289: 'onyx-cascade-58',
    1871: 'verde-lattice-46',
    1769: 'basal-anchor-76',
    1054: 'verde-cascade-70',
    1099: 'slate-harbor-43',
    1373: 'ember-harbor-11',
}


def resolve_03(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_03.get(code, "unknown")


def is_routed_03(code: int) -> bool:
    return code in ROUTES_03


# ============================ svc_04.py ============================
"""Service routing for the svc_04 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_04 = {
    1974: 'kelp-warden-19',
    1684: 'slate-forge-27',
    1803: 'jade-spindle-53',
    1201: 'xenon-conduit-34',
    1089: 'kelp-atlas-73',
    1790: 'garnet-harbor-58',
    1160: 'slate-atlas-68',
    1297: 'garnet-spindle-63',
    1789: 'kelp-warden-75',
    1306: 'amber-cascade-88',
}


def resolve_04(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_04.get(code, "unknown")


def is_routed_04(code: int) -> bool:
    return code in ROUTES_04


# ============================ svc_05.py ============================
"""Service routing for the svc_05 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_05 = {
    1840: 'rill-warden-12',
    1235: 'tundra-lattice-84',
    1761: 'quartz-vault-56',
    1501: 'ivory-prism-92',
    1620: 'dusk-lattice-51',
    1944: 'mica-forge-11',
    1538: 'onyx-lattice-10',
    1385: 'zephyr-warden-63',
    1139: 'jade-conduit-18',
    1670: 'rill-warden-67',
}


def resolve_05(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_05.get(code, "unknown")


def is_routed_05(code: int) -> bool:
    return code in ROUTES_05


# ============================ svc_06.py ============================
"""Service routing for the svc_06 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_06 = {
    1865: 'slate-conduit-37',
    1210: 'flint-warden-45',
    1261: 'garnet-warden-52',
    1552: 'verde-forge-87',
    1329: 'pyrite-lattice-39',
    1861: 'onyx-anchor-77',
    1272: 'flint-cipher-25',
    1544: 'pyrite-cipher-23',
    1803: 'onyx-gateway-20',
    1579: 'pyrite-vault-72',
}


def resolve_06(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_06.get(code, "unknown")


def is_routed_06(code: int) -> bool:
    return code in ROUTES_06


# ============================ svc_07.py ============================
"""Service routing for the svc_07 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_07 = {
    1009: 'willow-conduit-41',
    1166: 'verde-anchor-27',
    1960: 'ivory-quorum-64',
    1732: 'basal-cascade-70',
    1489: 'verde-lattice-24',
    1661: 'jade-broker-88',
    1559: 'rill-relay-98',
    1422: 'harbor-quorum-51',
    1518: 'cobalt-relay-53',
    1037: 'nimbus-quorum-19',
}


def resolve_07(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_07.get(code, "unknown")


def is_routed_07(code: int) -> bool:
    return code in ROUTES_07


# ============================ svc_08.py ============================
"""Service routing for the svc_08 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_08 = {
    1573: 'nimbus-prism-97',
    1068: 'umber-harbor-76',
    1075: 'zephyr-cascade-31',
    1641: 'nimbus-quorum-74',
    1415: 'onyx-vault-15',
    1741: 'loom-ledger-10',
    1807: 'loom-vault-47',
    1399: 'umber-cascade-47',
    1335: 'tundra-warden-15',
    1368: 'cobalt-cascade-86',
}


def resolve_08(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_08.get(code, "unknown")


def is_routed_08(code: int) -> bool:
    return code in ROUTES_08


# ============================ svc_09.py ============================
"""Service routing for the svc_09 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_09 = {
    1442: 'zephyr-relay-71',
    1556: 'nimbus-conduit-31',
    1380: 'yarrow-cipher-83',
    1871: 'jade-broker-45',
    1170: 'flint-forge-34',
    1904: 'xenon-anchor-27',
    1291: 'zephyr-atlas-59',
    1599: 'dusk-cascade-22',
    1886: 'amber-vault-62',
    1159: 'willow-prism-88',
}


def resolve_09(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_09.get(code, "unknown")


def is_routed_09(code: int) -> bool:
    return code in ROUTES_09


# ============================ svc_10.py ============================
"""Service routing for the svc_10 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_10 = {
    1699: 'basal-broker-54',
    1075: 'rill-vault-48',
    1549: 'ember-prism-39',
    1355: 'dusk-lattice-53',
    1620: 'nimbus-lattice-41',
    1843: 'willow-forge-56',
    1274: 'ivory-vault-16',
    1434: 'loom-vault-24',
    1599: 'harbor-anchor-95',
    1169: 'loom-spindle-26',
}


def resolve_10(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_10.get(code, "unknown")


def is_routed_10(code: int) -> bool:
    return code in ROUTES_10


# ============================ svc_11.py ============================
"""Service routing for the svc_11 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_11 = {
    1264: 'flint-conduit-55',
    1226: 'dusk-anchor-77',
    1414: 'pyrite-warden-65',
    1971: 'rill-spindle-16',
    1295: 'garnet-lattice-73',
    1293: 'basal-vault-17',
    1581: 'tundra-spindle-90',
    1174: 'umber-cipher-70',
    1943: 'willow-cascade-97',
    1870: 'slate-conduit-24',
}


def resolve_11(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_11.get(code, "unknown")


def is_routed_11(code: int) -> bool:
    return code in ROUTES_11


# ============================ svc_12.py ============================
"""Service routing for the svc_12 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_12 = {
    1626: 'mica-ledger-78',
    1613: 'amber-beacon-82',
    1595: 'zephyr-atlas-25',
    1692: 'quartz-warden-25',
    1995: 'umber-prism-82',
    1153: 'basal-anchor-53',
    1513: 'basal-anchor-53',
    1499: 'xenon-spindle-30',
    1597: 'ivory-harbor-57',
    1005: 'ivory-vault-38',
}


def resolve_12(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_12.get(code, "unknown")


def is_routed_12(code: int) -> bool:
    return code in ROUTES_12


# ============================ svc_13.py ============================
"""Service routing for the svc_13 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_13 = {
    1095: 'yarrow-spindle-96',
    1255: 'nimbus-spindle-51',
    1646: 'rill-warden-89',
    1749: 'ember-warden-97',
    1550: 'ivory-prism-34',
    1222: 'cobalt-quorum-60',
    1375: 'dusk-vault-56',
    1987: 'mica-vault-95',
    1994: 'zephyr-anchor-58',
    1430: 'pyrite-warden-26',
}


def resolve_13(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_13.get(code, "unknown")


def is_routed_13(code: int) -> bool:
    return code in ROUTES_13


# ============================ svc_14.py ============================
"""Service routing for the svc_14 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_14 = {
    1708: 'yarrow-warden-25',
    1276: 'zephyr-spindle-55',
    1189: 'rill-broker-69',
    1544: 'cobalt-warden-50',
    1144: 'garnet-harbor-45',
    1024: 'rill-broker-51',
    1577: 'flint-beacon-91',
    1175: 'verde-cipher-95',
    1755: 'loom-beacon-52',
    1895: 'willow-lattice-61',
}


def resolve_14(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_14.get(code, "unknown")


def is_routed_14(code: int) -> bool:
    return code in ROUTES_14


# ============================ svc_15.py ============================
"""Service routing for the svc_15 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_15 = {
    1122: 'zephyr-cipher-45',
    1469: 'jade-quorum-50',
    1950: 'yarrow-forge-98',
    1634: 'mica-gateway-78',
    1451: 'loom-warden-69',
    1589: 'ivory-atlas-14',
    1684: 'kelp-broker-12',
    1493: 'verde-harbor-60',
    1371: 'harbor-ledger-37',
    1598: 'nimbus-vault-88',
}


def resolve_15(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_15.get(code, "unknown")


def is_routed_15(code: int) -> bool:
    return code in ROUTES_15


# ============================ svc_16.py ============================
"""Service routing for the svc_16 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_16 = {
    1910: 'tundra-harbor-11',
    1000: 'nimbus-warden-73',
    1218: 'verde-prism-86',
    1681: 'rill-lattice-59',
    1245: 'loom-ledger-88',
    1820: 'ivory-harbor-52',
    1055: 'mica-atlas-58',
    1673: 'zephyr-spindle-29',
    1870: 'loom-beacon-39',
    1384: 'flint-conduit-14',
}


def resolve_16(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_16.get(code, "unknown")


def is_routed_16(code: int) -> bool:
    return code in ROUTES_16


# ============================ svc_17.py ============================
"""Service routing for the svc_17 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_17 = {
    1226: 'basal-gateway-48',
    1087: 'slate-forge-64',
    1122: 'umber-vault-54',
    1768: 'xenon-quorum-94',
    1297: 'nimbus-atlas-48',
    1357: 'umber-prism-69',
    1711: 'mica-prism-22',
    1401: 'jade-lattice-77',
    1350: 'jade-broker-10',
    1020: 'verde-forge-74',
}


def resolve_17(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_17.get(code, "unknown")


def is_routed_17(code: int) -> bool:
    return code in ROUTES_17


# ============================ svc_18.py ============================
"""Service routing for the svc_18 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_18 = {
    1656: 'amber-harbor-66',
    1966: 'harbor-quorum-66',
    1225: 'basal-forge-77',
    1485: 'willow-lattice-98',
    1136: 'ember-anchor-37',
    1651: 'zephyr-warden-78',
    1254: 'nimbus-cascade-15',
    1954: 'umber-cascade-98',
    1525: 'zephyr-forge-31',
    1742: 'rill-cipher-22',
}


def resolve_18(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_18.get(code, "unknown")


def is_routed_18(code: int) -> bool:
    return code in ROUTES_18


# ============================ svc_19.py ============================
"""Service routing for the svc_19 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_19 = {
    1050: 'flint-conduit-11',
    1677: 'garnet-warden-40',
    1969: 'ivory-gateway-71',
    1624: 'slate-conduit-98',
    1971: 'verde-cipher-19',
    1427: 'onyx-forge-26',
    1239: 'zephyr-conduit-93',
    1347: 'umber-cascade-75',
    1571: 'dusk-gateway-33',
    1963: 'willow-relay-87',
}


def resolve_19(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_19.get(code, "unknown")


def is_routed_19(code: int) -> bool:
    return code in ROUTES_19


# ============================ svc_20.py ============================
"""Service routing for the svc_20 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_20 = {
    1043: 'slate-conduit-35',
    1985: 'slate-atlas-86',
    1452: 'yarrow-broker-77',
    1216: 'umber-relay-15',
    1306: 'umber-vault-80',
    1223: 'garnet-anchor-37',
    1970: 'slate-ledger-28',
    1121: 'yarrow-harbor-44',
    1655: 'flint-prism-85',
    1006: 'ember-cipher-73',
}


def resolve_20(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_20.get(code, "unknown")


def is_routed_20(code: int) -> bool:
    return code in ROUTES_20


# ============================ svc_21.py ============================
"""Service routing for the svc_21 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_21 = {
    1582: 'verde-cascade-60',
    1736: 'rill-ledger-33',
    1069: 'cobalt-relay-98',
    1034: 'jade-atlas-63',
    1665: 'xenon-atlas-40',
    1417: 'cobalt-harbor-31',
    1400: 'amber-conduit-15',
    1879: 'harbor-anchor-64',
    1715: 'willow-cipher-95',
    1275: 'ivory-relay-43',
}


def resolve_21(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_21.get(code, "unknown")


def is_routed_21(code: int) -> bool:
    return code in ROUTES_21


# ============================ svc_22.py ============================
"""Service routing for the svc_22 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_22 = {
    1846: 'tundra-gateway-75',
    1216: 'kelp-ledger-75',
    1169: 'willow-anchor-49',
    1208: 'flint-lattice-87',
    1968: 'tundra-broker-76',
    1299: 'basal-atlas-56',
    1660: 'quartz-cipher-10',
    1363: 'pyrite-relay-60',
    1154: 'nimbus-atlas-22',
    1328: 'willow-ledger-73',
}


def resolve_22(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_22.get(code, "unknown")


def is_routed_22(code: int) -> bool:
    return code in ROUTES_22


# ============================ svc_23.py ============================
"""Service routing for the svc_23 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_23 = {
    1656: 'jade-beacon-89',
    1784: 'umber-anchor-41',
    1203: 'loom-broker-16',
    1799: 'flint-spindle-62',
    1070: 'harbor-lattice-40',
    1928: 'harbor-anchor-19',
    1739: 'mica-harbor-52',
    1925: 'dusk-cipher-83',
    1648: 'tundra-prism-22',
    1937: 'pyrite-ledger-79',
}


def resolve_23(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_23.get(code, "unknown")


def is_routed_23(code: int) -> bool:
    return code in ROUTES_23


# ============================ svc_24.py ============================
"""Service routing for the svc_24 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_24 = {
    1633: 'cobalt-ledger-64',
    1285: 'pyrite-spindle-40',
    1725: 'ember-beacon-68',
    1363: 'cobalt-relay-95',
    1022: 'dusk-warden-10',
    1332: 'flint-warden-75',
    1089: 'zephyr-atlas-11',
    1984: 'zephyr-broker-50',
    1509: 'rill-vault-87',
    1105: 'jade-relay-30',
}


def resolve_24(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_24.get(code, "unknown")


def is_routed_24(code: int) -> bool:
    return code in ROUTES_24


# ============================ svc_25.py ============================
"""Service routing for the svc_25 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_25 = {
    1061: 'amber-gateway-75',
    1089: 'cobalt-lattice-74',
    1361: 'quartz-lattice-77',
    1071: 'ember-prism-26',
    1926: 'yarrow-harbor-69',
    1148: 'dusk-ledger-18',
    1824: 'dusk-spindle-79',
    1282: 'rill-vault-50',
    1435: 'zephyr-gateway-17',
    1778: 'tundra-atlas-41',
}


def resolve_25(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_25.get(code, "unknown")


def is_routed_25(code: int) -> bool:
    return code in ROUTES_25


# ============================ svc_26.py ============================
"""Service routing for the svc_26 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_26 = {
    1609: 'harbor-cascade-15',
    1225: 'cobalt-lattice-67',
    1410: 'basal-beacon-24',
    1031: 'onyx-cascade-84',
    1516: 'verde-anchor-29',
    1560: 'onyx-anchor-13',
    1048: 'flint-cipher-41',
    1267: 'mica-forge-46',
    1178: 'amber-conduit-20',
    1337: 'umber-vault-93',
}


def resolve_26(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_26.get(code, "unknown")


def is_routed_26(code: int) -> bool:
    return code in ROUTES_26


# ============================ svc_27.py ============================
"""Service routing for the svc_27 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_27 = {
    1455: 'yarrow-cipher-74',
    1260: 'garnet-cascade-14',
    1350: 'loom-beacon-84',
    1810: 'verde-prism-82',
    1213: 'dusk-quorum-41',
    1071: 'yarrow-broker-51',
    1854: 'cobalt-spindle-48',
    1708: 'jade-spindle-16',
    1698: 'kelp-harbor-15',
    1270: 'rill-ledger-71',
}


def resolve_27(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_27.get(code, "unknown")


def is_routed_27(code: int) -> bool:
    return code in ROUTES_27


# ============================ svc_28.py ============================
"""Service routing for the svc_28 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_28 = {
    1734: 'ivory-warden-43',
    1198: 'ivory-harbor-78',
    1451: 'cobalt-harbor-87',
    1445: 'cobalt-anchor-79',
    1756: 'slate-anchor-51',
    1443: 'harbor-prism-78',
    1287: 'mica-relay-27',
    1231: 'slate-lattice-46',
    1944: 'willow-forge-43',
    1108: 'ivory-conduit-76',
}


def resolve_28(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_28.get(code, "unknown")


def is_routed_28(code: int) -> bool:
    return code in ROUTES_28


# ============================ svc_29.py ============================
"""Service routing for the svc_29 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_29 = {
    1128: 'nimbus-quorum-97',
    1381: 'onyx-broker-88',
    1633: 'amber-cipher-53',
    1960: 'cobalt-forge-48',
    1309: 'harbor-warden-58',
    1239: 'mica-quorum-81',
    1089: 'ivory-quorum-63',
    1412: 'verde-vault-67',
    1555: 'nimbus-cascade-65',
    1975: 'garnet-forge-43',
}


def resolve_29(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_29.get(code, "unknown")


def is_routed_29(code: int) -> bool:
    return code in ROUTES_29


# ============================ svc_30.py ============================
"""Service routing for the svc_30 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_30 = {
    1179: 'basal-prism-35',
    1070: 'ivory-broker-25',
    1135: 'tundra-prism-20',
    1923: 'pyrite-spindle-14',
    1514: 'yarrow-quorum-39',
    1576: 'cobalt-prism-95',
    1059: 'pyrite-conduit-88',
    1614: 'pyrite-spindle-83',
    1731: 'umber-conduit-64',
    1846: 'mica-forge-34',
}


def resolve_30(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_30.get(code, "unknown")


def is_routed_30(code: int) -> bool:
    return code in ROUTES_30


# ============================ svc_31.py ============================
"""Service routing for the svc_31 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_31 = {
    1869: 'mica-prism-51',
    1753: 'harbor-relay-18',
    1328: 'harbor-broker-66',
    1695: 'zephyr-relay-15',
    1452: 'garnet-relay-20',
    1634: 'kelp-beacon-43',
    1019: 'harbor-cipher-74',
    1059: 'harbor-beacon-64',
    1350: 'amber-conduit-44',
    1242: 'verde-conduit-60',
}


def resolve_31(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_31.get(code, "unknown")


def is_routed_31(code: int) -> bool:
    return code in ROUTES_31


# ============================ svc_32.py ============================
"""Service routing for the svc_32 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_32 = {
    1199: 'willow-cipher-88',
    1331: 'harbor-anchor-80',
    1297: 'yarrow-conduit-36',
    1699: 'willow-ledger-27',
    1167: 'garnet-anchor-94',
    1826: 'rill-anchor-37',
    1773: 'tundra-spindle-20',
    1398: 'umber-gateway-37',
    1629: 'flint-cipher-61',
    1268: 'ember-cascade-61',
}


def resolve_32(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_32.get(code, "unknown")


def is_routed_32(code: int) -> bool:
    return code in ROUTES_32


# ============================ svc_33.py ============================
"""Service routing for the svc_33 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_33 = {
    1823: 'umber-warden-55',
    1768: 'cobalt-relay-10',
    1544: 'umber-cascade-43',
    1514: 'willow-anchor-51',
    1343: 'quartz-broker-78',
    1458: 'nimbus-broker-40',
    1996: 'jade-warden-38',
    1468: 'slate-cipher-39',
    1809: 'nimbus-relay-64',
    1977: 'flint-prism-62',
}


def resolve_33(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_33.get(code, "unknown")


def is_routed_33(code: int) -> bool:
    return code in ROUTES_33


# ============================ svc_34.py ============================
"""Service routing for the svc_34 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_34 = {
    1693: 'nimbus-beacon-71',
    1306: 'zephyr-vault-36',
    1725: 'yarrow-conduit-73',
    1127: 'onyx-quorum-95',
    1746: 'rill-atlas-88',
    1353: 'umber-conduit-92',
    1404: 'verde-vault-50',
    1446: 'slate-forge-87',
    1056: 'cobalt-gateway-70',
    1403: 'nimbus-lattice-67',
}


def resolve_34(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_34.get(code, "unknown")


def is_routed_34(code: int) -> bool:
    return code in ROUTES_34


# ============================ svc_35.py ============================
"""Service routing for the svc_35 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_35 = {
    1992: 'slate-prism-38',
    1095: 'ivory-atlas-92',
    1928: 'basal-forge-82',
    1508: 'basal-atlas-93',
    1897: 'jade-relay-42',
    1545: 'zephyr-gateway-32',
    1504: 'quartz-cipher-67',
    1982: 'verde-spindle-56',
    1077: 'pyrite-spindle-20',
    1964: 'onyx-beacon-46',
}


def resolve_35(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_35.get(code, "unknown")


def is_routed_35(code: int) -> bool:
    return code in ROUTES_35


# ============================ svc_36.py ============================
"""Service routing for the svc_36 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_36 = {
    1470: 'zephyr-broker-47',
    1082: 'rill-relay-22',
    1900: 'onyx-atlas-41',
    1570: 'loom-anchor-16',
    1861: 'nimbus-anchor-46',
    1708: 'rill-atlas-44',
    1932: 'mica-warden-31',
    1574: 'yarrow-relay-44',
    1115: 'umber-vault-63',
    1517: 'cobalt-beacon-68',
}


def resolve_36(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_36.get(code, "unknown")


def is_routed_36(code: int) -> bool:
    return code in ROUTES_36


# ============================ svc_37.py ============================
"""Service routing for the svc_37 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_37 = {
    1415: 'basal-beacon-72',
    1322: 'flint-ledger-80',
    1644: 'garnet-forge-54',
    1444: 'basal-warden-98',
    1127: 'quartz-warden-59',
    1054: 'cobalt-vault-90',
    1241: 'dusk-anchor-53',
    1918: 'loom-vault-74',
    1555: 'amber-atlas-75',
    1349: 'willow-atlas-14',
}


def resolve_37(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_37.get(code, "unknown")


def is_routed_37(code: int) -> bool:
    return code in ROUTES_37


# ============================ svc_38.py ============================
"""Service routing for the svc_38 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_38 = {
    1471: 'ivory-harbor-39',
    1219: 'ivory-broker-88',
    1083: 'cobalt-cipher-91',
    1595: 'mica-spindle-27',
    1484: 'verde-relay-61',
    1010: 'cobalt-spindle-95',
    1770: 'nimbus-beacon-95',
    1892: 'rill-vault-19',
    1581: 'quartz-anchor-95',
    1863: 'umber-quorum-37',
}


def resolve_38(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_38.get(code, "unknown")


def is_routed_38(code: int) -> bool:
    return code in ROUTES_38


# ============================ svc_39.py ============================
"""Service routing for the svc_39 edge cluster.

Auto-generated from the service mesh manifest. Maps upstream status codes to the
downstream service that should handle the retry/escalation for that code.
"""

ROUTES_39 = {
    1935: 'ivory-warden-73',
    1540: 'verde-vault-66',
    1950: 'onyx-spindle-81',
    1923: 'basal-ledger-25',
    1574: 'jade-broker-59',
    1925: 'mica-prism-82',
    1240: 'ember-ledger-10',
    1041: 'verde-quorum-65',
    1595: 'pyrite-prism-80',
    1073: 'verde-atlas-55',
}


def resolve_39(code: int) -> str:
    """Return the handling service for a status code, or "unknown" if unrouted."""
    return ROUTES_39.get(code, "unknown")


def is_routed_39(code: int) -> bool:
    return code in ROUTES_39

tests/test_resolve.py
from solution import resolve


def test_routes_from_the_needle_module():
    # every code in module svc_20's ROUTES_20 table resolves to its service
    assert resolve(1043) == 'slate-conduit-35'
    assert resolve(1985) == 'slate-atlas-86'
    assert resolve(1452) == 'yarrow-broker-77'
    assert resolve(1216) == 'umber-relay-15'
    assert resolve(1306) == 'umber-vault-80'
    assert resolve(1223) == 'garnet-anchor-37'
    assert resolve(1970) == 'slate-ledger-28'
    assert resolve(1121) == 'yarrow-harbor-44'
    assert resolve(1655) == 'flint-prism-85'
    assert resolve(1006) == 'ember-cipher-73'


def test_unrouted_code_is_unknown():
    assert resolve(1001) == "unknown"      # in no module's table


def test_decoy_module_code_is_unknown():
    # 1000 appears in a DIFFERENT module's table but not in svc_20 -> unknown
    assert resolve(1000) == "unknown"
System prompt
You are an expert programmer. Solve the task exactly as specified. Output your solution as fenced code blocks using the required file name(s) and the exact function/type signatures requested. Prefer correctness; do not include prose outside code unless asked.
Proposed solution
```python
def resolve(code: int) -> str:
    """Return the handling service for a status code, or 'unknown' if unrouted."""
    ROUTES_20 = {
        1043: 'slate-conduit-35',
        1985: 'slate-atlas-86',
        1452: 'yarrow-broker-77',
        1216: 'umber-relay-15',
        1306: 'umber-vault-80',
        1223: 'garnet-anchor-37',
        1970: 'slate-ledger-28',
        1121: 'yarrow-harbor-44',
        1655: 'flint-prism-85',
        1006: 'ember-cipher-73',
    }
    return ROUTES_20.get(code, "unknown")
```

Test output (stdout)

...                                                                      [100%]
3 passed in 0.01s
Reasoning (chain-of-thought)
The user wants me to implement a `solution.py` file with a `resolve` function that uses the routing table from `svc_20.py`.

From the snapshot, I can see that `svc_20.py` has:

```python
ROUTES_20 = {
    1043: 'slate-conduit-35',
    1985: 'slate-atlas-86',
    1452: 'yarrow-broker-77',
    1216: 'umber-relay-15',
    1306: 'umber-vault-80',
    1223: 'garnet-anchor-37',
    1970: 'slate-ledger-28',
    1121: 'yarrow-harbor-44',
    1655: 'flint-prism-85',
    1006: 'ember-cipher-73',
}
```

The `resolve` function should:
1. Take an integer `code` as input
2. Return the service name from `ROUTES_20` if the code exists in the table
3. Return `"unknown"` for any other code

I need to inline the mapping from `svc_20` directly into my solution (not import from the snapshot).

Let me create the solution.py file with the exact function signature requested.