he-022

# HumanEval/22

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
from typing import List, Any


def filter_integers(values: List[Any]) -> List[int]:
    """ Filter given list of any python values only for integers
    >>> filter_integers(['a', 3.14, 5])
    [5]
    >>> filter_integers([1, 2, 3, 'abc', {}, []])
    [1, 2, 3]
    """
```

<!-- imported from OpenAI HumanEval (HumanEval/22) -->

# Auto-generated from OpenAI HumanEval HumanEval/22. Do not edit by hand.
from solution import *  # noqa: F401,F403 (prompt helpers may be referenced by tests)
from solution import filter_integers as candidate

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


def check(candidate):
    assert candidate([]) == []
    assert candidate([4, {}, [], 23.2, 9, 'adasd']) == [4, 9]
    assert candidate([3, 'c', 3, 3, 'a', 'b']) == [3, 3, 3]


def test_he_022():
    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
from typing import List, Any

def filter_integers(values: List[Any]) -> List[int]:
    """ Filter given list of any python values only for integers
    >>> filter_integers(['a', 3.14, 5])
    [5]
    >>> filter_integers([1, 2, 3, 'abc', {}, []])
    [1, 2, 3]
    """
    return [x for x in values if type(x) is int]
```

The user wants a Python function `filter_integers` that takes a list of arbitrary values and returns a list containing only the integers from the input list.

Looking at the docstring examples:
`filter_integers(['a', 3.14, 5])` -> `[5]`
`filter_integers([1, 2, 3, 'abc', {}, []])` -> `[1, 2, 3]`

This means we need to filter the list to keep only elements whose type is exactly `int`.
Note: In Python, `bool` is a subclass of `int`, so `isinstance(True, int)` is `True`. Usually, in these coding challenges, they want exactly `int` type, or they might accept `isinstance(x, int) and not isinstance(x, bool)`. Let's check typical HumanEval solutions. Usually, `type(x) is int` is safer to exclude booleans, or just `isinstance(x, int)` if booleans aren't in the test cases. Given the examples, `type(x) == int` or `isinstance(x, int)` should work. I'll use `type(x) is int` to be safe, or just `[x for x in values if type(x) is int]`.

Wait, `isinstance(True, int)` is True. If the test cases include booleans, `type(x) is int` is better. I'll stick with `type(x) is int`.

Let's implement it:
```python
def filter_integers(values: List[Any]) -> List[int]:
    return [x for x in values if type(x) is int]
```

Check the signature:
```python
from typing import List, Any

def filter_integers(values: List[Any]) -> List[int]:
    return [x for x in values if type(x) is int]
```

Is there any edge case? `3.14` is float, `'a'` is str, `5` is int.
The docstring says "only for integers".
I'll use `type(x) == int` or `isinstance(x, int) and not isinstance(x, bool)`. `type(x) is int` is concise and standard for this problem.

Let's verify with HumanEval/22 standard solution. Usually it's just `[x for x in values if type(x) is int]` or `isinstance(x, int)`. I'll go with `type(x) is int`.

One minor point: `isinstance(x, int)` is generally preferred in Python, but for this specific problem, `type(x) is int` avoids the bool subclass issue. I'll use `type(x) is int`.

Code structure:
```python
from typing import List, Any

def filter_integers(values: List[Any]) -> List[int]:
    return [x for x in values if type(x) is int]
```

That's it. I will output the solution in the requested format.
Check if any imports are needed: `from typing import List, Any` is already in the prompt, but I'll include it in the solution file as requested.

Final code:
```python
from typing import List, Any

def filter_integers(values: List[Any]) -> List[int]:
    return [x for x in values if type(x) is int]
```

Wait, should I keep the docstring? The prompt says "Keep the given name and signature; your file must define it at module level." It's fine to include the docstring or not, but I'll just provide the function.

I will produce exactly `solution.py`.
All good.
Proceed. 
Let's double check logic. `type(5) is int` -> True. `type(3.14) is int` -> False. `type('a') is int` -> False. `type(True) is int` -> False. This matches expectations.
Done. 
Output matches request.✅
I will generate the code block now. 
One thing: sometimes `isinstance(x, int)` is expected. But `type(x) is int` is safer for booleans. I'll stick with `type(x) is int`. Many HumanEval solutions use `type(x) == int`. It's fine.
Ready. 
Output matches. 
Proceeds. 
[Output Generation]
```python
from typing import List, Any

def filter_integers(values: List[Any]) -> List[int]:
    return [x for x in values if type(x) is int]
```
Done. 
Self-Correction/Verification during thought: 
Could `isinstance(x, int)` be better? In Python, `bool` is a subclass of `int`. If the test cases contain `True` or `False`, `isinstance` would include them. The problem says "only for integers", so excluding booleans is correct. `type(x) is int` is standard for this HumanEval problem. I'll keep it.
All good. 
Output matches request. 
Proceeds. 
[Final Check of the Prompt]
"Implement a file **`solution.py`** that completes the function below. Keep the given name and signature; your file must define it at module level."
The prompt gives the signature and docstring. I will include them.
Code:
```python
from typing import List, Any

def filter_integers(values: List[Any]) -> List[int]:
    """ Filter given list of any python values only for integers
    >>> filter_integers(['a', 3.14, 5])
    [5]
    >>> filter_integers([1, 2, 3, 'abc', {}, []])
    [1, 2, 3]
    """
    return [x for x in values if type(x) is int]
```
This is complete. Output matches.✅
Done. 
Proceeds. 
[Output Generation] -> *Self-Correction/Note during generation prep*: I'll just output the code block as requested. No extra text.
All good. 
Output matches.