"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 07:08:09.274837
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing functions with a fallback mechanism in case of errors.

    This class provides a way to run a main function and provide an alternate or fallback function if the main one fails.
    It ensures that any error raised by the main function is caught, logged (if logger provided), and the fallback
    function can be executed instead. The result from the fallback function will be returned in case of failure.

    :param main_fn: Callable to execute as the primary function.
    :param fallback_fn: Callable to execute if `main_fn` fails.
    :param logger: Optional, a logging mechanism for error reporting.
    """

    def __init__(self, main_fn: Callable[..., Any], fallback_fn: Callable[..., Any], logger=None):
        self.main_fn = main_fn
        self.fallback_fn = fallback_fn
        self.logger = logger

    def execute(self) -> Any:
        """
        Execute the `main_fn` and if it raises an exception, run the `fallback_fn`.

        :return: Result of either `main_fn` or `fallback_fn`.
        """
        try:
            return self.main_fn()
        except Exception as e:
            if self.logger:
                self.logger.error(f"Error in main function: {str(e)}")
            return self.fallback_fn()


# Example usage
def divide(a, b):
    """Divide two numbers."""
    return a / b


def safe_divide(a, b):
    """Safe division that returns None if division by zero occurs."""
    try:
        return a / b
    except ZeroDivisionError:
        return None


fallback_executor = FallbackExecutor(
    main_fn=divide,
    fallback_fn=safe_divide,
    logger=None  # In practice, you would pass an actual logging instance here.
)

# Test the example
result = fallback_executor.execute(a=10, b=2)
print(result)  # Expected output: 5.0

result = fallback_executor.execute(a=10, b=0)
print(result)  # Expected output: None (or depending on your logging mechanism for error messages)
```