"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 18:23:21.340911
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing functions with fallbacks in case of errors.
    
    This implementation allows wrapping a function to handle exceptions and provide
    a fallback execution if an error occurs. The `execute` method tries the main function,
    and if it fails, it attempts the fallback function (if provided) or exits gracefully.

    :param main_func: Callable, the primary function to execute.
    :param fallback_func: Callable, optional, the function to execute in case of failure.
    """

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

    def execute(self) -> Any:
        """
        Execute the main function and handle exceptions. If an exception occurs,
        attempt to run the fallback function if provided.
        
        :return: The result of the successful execution or None on failure without a fallback.
        """
        try:
            return self.main_func()
        except Exception as e:
            print(f"Error in main function: {e}")
            
            if self.fallback_func is not None:
                try:
                    return self.fallback_func()
                except Exception as e2:
                    print(f"Error in fallback function: {e2}")
                    return None
            else:
                print("No fallback function provided. Exiting.")
                exit(1)


# Example usage

def main_function() -> int:
    """Main function that may raise an exception."""
    return 42 / 0  # Simulate division by zero error


def fallback_function() -> int:
    """Fallback function to execute if the main function fails."""
    print("Executing fallback: Returning a default value.")
    return 1337


# Create instance of FallbackExecutor
executor = FallbackExecutor(main_function, fallback_func=fallback_function)

# Attempt execution and catch any errors that may occur
result = executor.execute()
print(f"Result from execute: {result}")
```