"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 15:22:58.985146
"""

```python
from typing import Callable, Any, Optional


class FallbackExecutor:
    """
    A class that provides a mechanism for executing tasks with fallbacks in case of errors.

    :param primary_executor: The main function to execute.
    :type primary_executor: Callable[..., Any]
    :param fallback_executor: An optional backup function to run if the primary fails.
    :type fallback_executor: Optional[Callable[..., Any]]
    """

    def __init__(self, primary_executor: Callable[..., Any], fallback_executor: Optional[Callable[..., Any]] = None):
        self.primary_executor = primary_executor
        self.fallback_executor = fallback_executor

    def execute(self, *args, **kwargs) -> Any:
        """
        Attempts to execute the primary function. If it fails and a fallback is provided,
        attempts to run the fallback function.

        :param args: Positional arguments for the primary function.
        :param kwargs: Keyword arguments for the primary function.
        :return: The result of the executed function or None if both failed.
        """
        try:
            return self.primary_executor(*args, **kwargs)
        except Exception as e1:
            if not self.fallback_executor:
                print(f"Primary execution failed with error: {e1}")
                return None
            try:
                fallback_result = self.fallback_executor(*args, **kwargs)
                print("Using fallback executor.")
                return fallback_result
            except Exception as e2:
                print(f"Fallback execution failed with error: {e2}")
                return None


# Example Usage
def divide(a: int, b: int) -> float:
    """
    Divides two numbers.
    :param a: Numerator.
    :param b: Denominator.
    :return: Result of division.
    """
    return a / b

def safe_divide(a: int, b: int) -> Optional[float]:
    """
    Safe version of divide with fallback to avoid zero division error.
    :param a: Numerator.
    :param b: Denominator.
    :return: Result of division or None if denominator is 0.
    """
    if b == 0:
        return None
    else:
        return a / b


fallback_executor = FallbackExecutor(primary_executor=divide, fallback_executor=safe_divide)

# Test cases
print(fallback_executor.execute(10, 2))  # Should print 5.0
print(fallback_executor.execute(10, 0))  # Should print None and use safe_divide to return None


```