"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 13:01:45.494100
"""

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


class FallbackExecutor:
    """
    A class for creating a fallback mechanism that can execute functions with retries in case of errors.
    The class attempts to execute a primary function and falls back to an alternative function if the primary fails.

    :param primary_function: The main function to be executed. Should accept keyword arguments.
    :type primary_function: Callable
    :param fallback_function: The alternative function to use as a fallback in case of error from `primary_function`. Also accepts keyword arguments.
    :type fallback_function: Optional[Callable]
    """

    def __init__(self, primary_function: Callable[..., Any], fallback_function: Optional[Callable[..., Any]] = None):
        self.primary_function = primary_function
        self.fallback_function = fallback_function

    def execute(self, *args, **kwargs) -> Any:
        """
        Executes the `primary_function` with provided arguments. If an error occurs, tries to execute the `fallback_function`.
        
        :param args: Positional arguments passed to `primary_function`.
        :param kwargs: Keyword arguments passed to `primary_function` and fallback function.
        :return: The result of the successfully executed function or None if both functions failed.
        """
        try:
            return self.primary_function(*args, **kwargs)
        except Exception as e:
            print(f"Error occurred in primary function: {e}")
            if self.fallback_function:
                try:
                    return self.fallback_function(*args, **kwargs)
                except Exception as fallback_e:
                    print(f"Fallback function failed with error: {fallback_e}")
                    return None
            else:
                print("No fallback function available")
                return None


# Example usage:

def divide_numbers(a: int, b: int) -> float:
    """
    Divides two numbers and returns the result.
    :param a: Numerator
    :param b: Denominator
    :return: Division result or error message if division by zero occurs.
    """
    return a / b


def safe_divide(a: int, b: int) -> float:
    """
    Safe division function that returns 0 in case of division by zero to avoid errors.
    :param a: Numerator
    :param b: Denominator
    :return: Division result or 0 if division by zero occurs.
    """
    return 0


# Create FallbackExecutor instance
executor = FallbackExecutor(divide_numbers, safe_divide)

# Successful execution
result = executor.execute(10, 2)
print(f"Result: {result}")  # Should print "5.0"

# Error handling (division by zero)
result = executor.execute(10, 0)
print(f"Result after fallback: {result}")  # Should print "0"
```