"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-05 23:00:07.751099
"""

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


class FallbackExecutor:
    """
    A class for creating a fallback mechanism in function execution.
    
    This class allows defining a primary and secondary functions to be executed based on error handling needs.
    If the primary function fails or returns an error, the secondary function is attempted.

    :param func: The primary function to execute.
    :param fallback_func: The secondary function to execute if the primary fails.
    """

    def __init__(self, func: Callable[..., Any], fallback_func: Optional[Callable[..., Any]] = None):
        self.func = func
        self.fallback_func = fallback_func

    def _execute(self, *args: Any, **kwargs: Any) -> Any:
        try:
            return self.func(*args, **kwargs)
        except Exception as e:
            if self.fallback_func is not None:
                print(f"Primary function failed with error: {e}. Attempting fallback...")
                return self.fallback_func(*args, **kwargs)
            else:
                raise

    def __call__(self, *args: Any, **kwargs: Any) -> Any:
        """
        Execute the primary function and handle exceptions by falling back to the secondary function if needed.
        
        :param args: Arguments for the function execution.
        :param kwargs: Keyword arguments for the function execution.
        :return: The result of the executed function or fallback.
        """
        return self._execute(*args, **kwargs)


# Example usage
def divide(a: int, b: int) -> float:
    """Divide a by b."""
    return a / b


def safe_divide(a: int, b: int) -> Optional[float]:
    """Safe division that returns None if the divisor is zero."""
    return a / b if b != 0 else None


fallback_executor = FallbackExecutor(func=divide, fallback_func=safe_divide)

# Example of function execution
result = fallback_executor(10, 2)
print(f"Result: {result}")  # Expected: Result: 5.0

# Example of failure and fallback
result = fallback_executor(10, 0)
print(f"Result with fallback: {result}")  # Expected: Result with fallback: None
```