"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-05 21:47:24.418099
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for creating a fallback mechanism in function execution.
    
    Attributes:
        primary_function: The main function to be executed.
        fallback_function: The secondary function that serves as the fallback.
        error_handler: Function to handle errors during execution.

    Methods:
        execute: Attempts to execute the primary function and falls back to the
                 fallback function if an exception occurs. 
    """
    
    def __init__(self, primary_function: Callable[..., Any], fallback_function: Callable[..., Any], error_handler: Callable[[Exception], None]):
        self.primary_function = primary_function
        self.fallback_function = fallback_function
        self.error_handler = error_handler

    def execute(self) -> Any:
        """
        Attempts to execute the primary function. If an exception occurs,
        it executes the fallback function and handles any additional errors.
        
        Returns:
            The result of the executed function, or None if both fail.
        """
        try:
            return self.primary_function()
        except Exception as e:
            try:
                return self.fallback_function()
            except Exception as fe:
                self.error_handler(fe)
                return None


# Example usage
def main_function() -> int:
    result = 10 / 0  # This will raise a ZeroDivisionError
    return result

def fallback_function() -> int:
    print("Fallback function executed!")
    return 5

def error_handling_exception(e: Exception):
    print(f"An unexpected exception occurred: {e}")

executor = FallbackExecutor(main_function, fallback_function, error_handling_exception)
result = executor.execute()
print(result)  # This will output "None", and print messages for both exceptions.
```

This Python code implements a `FallbackExecutor` class that provides a mechanism to handle errors in function execution by providing a fallback option. The example usage demonstrates how this can be used in a scenario where the primary function might fail due to an error, and the fallback function is executed instead.