Is your feature request related to a problem? Please describe.

• The current implementation for bare type validation does not adequately support callable bare types due to their unique structure.

Describe the solution you'd like

• Update the type validation logic to include specific handling for callable bare types by incorporating _check_callable_compatibility. This ensures that callable types are validated correctly and consistently. For example, the test case pytest.param(Callable[[Any], Any], Callable) should pass with the updated implementation.