"""Create logic_validator
Generated by Phi-Octopus Eden
2025-11-06 20:28:05.999793
"""

```python
from typing import Any, Callable


def logic_validator(condition: Callable[[Any], bool]) -> Callable:
    """
    A decorator function that validates the condition of a given logic before execution.
    
    :param condition: A callable object representing the condition to be checked.
    :return: A decorated function wrapper.

    Example usage:
    >>> @logic_validator(lambda x: isinstance(x, str))
    ... def process_input(input_data):
    ...     return len(input_data)
    ...
    >>> process_input("Hello")
    5
    >>> process_input(123)  # This will raise an exception due to the condition check
    Traceback (most recent call last):
      ...
    ValueError: Input must be a string.
    """
    def decorator(func: Callable) -> Callable:
        def wrapper(*args, **kwargs):
            if not condition(args[0]):
                raise ValueError(f"Input must {condition.__name__}.")
            return func(*args, **kwargs)
        return wrapper
    return decorator


# Example usage of the logic_validator
@logic_validator(lambda x: isinstance(x, str))
def process_input(input_data: Any) -> int:
    """
    Processes input data by returning its length.

    :param input_data: The input to be processed.
    :return: Length of the input as an integer.
    """
    return len(input_data)


# Test case
if __name__ == "__main__":
    try:
        print(process_input("Hello World"))  # Expected output: 11
    except ValueError as e:
        print(e)
    
    try:
        print(process_input(123))  # This should raise an exception
    except ValueError as e:
        print(e)
```

This code defines a `logic_validator` decorator that can be used to ensure that the input to a function meets certain conditions before executing it. The decorator checks if the first argument of the decorated function satisfies a provided condition (in this case, being a string). If not, it raises a `ValueError`. An example usage and test cases are also included in the docstring comments for clarity.