"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 06:46:44.685766
"""

```python
from typing import Any, Callable


class FallbackExecutor:
    """
    A class for executing a main function with a fallback in case of errors.

    Args:
        main_function: The primary function to execute.
        fallback_function: The function to use if the main function fails.

    Raises:
        Exception: If both the main and fallback functions fail.
    
    Returns:
        Any: The result of the executed function.
    """

    def __init__(self, main_function: Callable[[], Any], fallback_function: Callable[[], Any]):
        self.main_function = main_function
        self.fallback_function = fallback_function

    def execute(self) -> Any:
        """
        Executes the main function. If an error occurs, executes the fallback function.
        Raises a generic exception if both fail.

        Returns:
            The result of the executed function.
        """
        try:
            return self.main_function()
        except Exception as e:
            try:
                return self.fallback_function()
            except Exception as fe:
                raise Exception("Both main and fallback functions failed.") from fe


# Example usage
def main_operation() -> int:
    """Main operation that may fail"""
    # Simulate failure scenario
    if True:  # Change to False for successful execution
        raise ValueError("Operation failed.")
    
    return 42

def backup_operation() -> int:
    """Backup operation called when the primary fails"""
    return 13


if __name__ == "__main__":
    executor = FallbackExecutor(main_operation, backup_operation)
    result = executor.execute()
    print(f"Result: {result}")
```

This code defines a class `FallbackExecutor` which handles running two functions in sequence. It captures any exceptions from the main function and uses the fallback if an error occurs. If both fail, it raises an exception. The example usage demonstrates how to use this class to recover from errors when executing critical operations.