he-023

# HumanEval/23

Implement a file **`solution.py`** that completes the function below. Keep the given name and signature; your file must define it at module level.

```python


def strlen(string: str) -> int:
    """ Return length of given string
    >>> strlen('')
    0
    >>> strlen('abc')
    3
    """
```

<!-- imported from OpenAI HumanEval (HumanEval/23) -->

# Auto-generated from OpenAI HumanEval HumanEval/23. Do not edit by hand.
from solution import *  # noqa: F401,F403 (prompt helpers may be referenced by tests)
from solution import strlen as candidate

METADATA = {
    'author': 'jt',
    'dataset': 'test'
}


def check(candidate):
    assert candidate('') == 0
    assert candidate('x') == 1
    assert candidate('asdasnakj') == 9


def test_he_023():
    check(candidate)

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.

```python
def strlen(string: str) -> int:
    """ Return length of given string
    >>> strlen('')
    0
    >>> strlen('abc')
    3
    """
    return len(string)
```

The user wants me to implement a simple function `strlen` that returns the length of a given string.
This is a straightforward task. I'll just use Python's built-in `len()` function.

Function signature:
```python
def strlen(string: str) -> int:
    """ Return length of given string
    >>> strlen('')
    0
    >>> strlen('abc')
    3
    """
    return len(string)
```

I will output the solution in a fenced code block named `solution.py`.
No extra fluff.
Check constraints: "Keep the given name and signature; your file must define it at module level."
Everything matches.
Ready. 
Output matches request.
Proceed. 
Self-Correction/Verification:
The prompt asks for `solution.py`.
The code is trivial.
I will produce exactly that.
Done. 
Output generation. 
```python
def strlen(string: str) -> int:
    """ Return length of given string
    >>> strlen('')
    0
    >>> strlen('abc')
    3
    """
    return len(string)
```
Matches requirements.✅
Done. 
Proceeds. 
[Output Generation] -> *Proceeds*