"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 16:03:24.209713
"""

```python
from typing import Callable, Optional


class FallbackExecutor:
    """
    A class that provides a mechanism for executing functions with fallbacks.
    
    If the primary function execution results in an error, a fallback function can be invoked to handle it.
    """

    def __init__(self, primary_function: Callable, fallback_function: Callable):
        """
        Initialize the FallbackExecutor with both the primary and fallback functions.

        :param primary_function: The main function to execute. Expected to return a value or raise an exception.
        :param fallback_function: The function to use as a fallback in case of errors from the primary function.
                                   It should have similar input and output parameters as the primary function.
        """
        self.primary_function = primary_function
        self.fallback_function = fallback_function

    def execute_with_fallback(self, *args, **kwargs) -> Optional[str]:
        """
        Execute the primary function with given arguments. If an exception occurs, attempt to use the fallback.

        :param args: Positional arguments for the functions.
        :param kwargs: Keyword arguments for the functions.
        :return: The result of the successfully executed function or None if both fail.
        """
        try:
            return self.primary_function(*args, **kwargs)
        except Exception as e:
            print(f"Primary function failed with error: {e}")
            try:
                return self.fallback_function(*args, **kwargs)
            except Exception as fallback_e:
                print(f"Fallback function also failed with error: {fallback_e}")
                return None


# Example usage
def divide_numbers(num1: int, num2: int) -> float:
    """
    Divide two numbers and return the result.
    
    :param num1: Numerator.
    :param num2: Denominator.
    :return: Division result or raises ZeroDivisionError if denominator is 0.
    """
    return num1 / num2


def divide_by_fallback(num1: int, num2: int) -> float:
    """
    Fallback function to divide two numbers with error handling.

    :param num1: Numerator.
    :param num2: Denominator.
    :return: Division result or a custom message if division by zero occurs.
    """
    try:
        return num1 / num2
    except ZeroDivisionError:
        print("Fallback function handled the division by zero error.")
        return 0.0


# Create instances and execute with fallbacks
executor = FallbackExecutor(primary_function=divide_numbers, fallback_function=divide_by_fallback)

result = executor.execute_with_fallback(10, 2)  # Should succeed
print(f"Result: {result}")

result = executor.execute_with_fallback(10, 0)  # Should use the fallback function
print(f"Result: {result}")
```