"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 05:15:29.157554
"""

```python
class FallbackExecutor:
    """
    A class to handle function execution with a fallback mechanism in case of errors.
    
    Args:
        main_function (callable): The primary function to execute.
        fallback_function (callable, optional): The function to execute if the main function fails. Defaults to None.

    Attributes:
        main_function (callable): The primary function to be executed.
        fallback_function (callable): The function to be used as a fallback in case of errors.

    Raises:
        TypeError: If `main_function` or `fallback_function` are not callable.
    
    Returns:
        The result of the main function execution, or the fallback if an exception occurs.
    """
    def __init__(self, main_function: callable, fallback_function: callable = None) -> None:
        if not callable(main_function):
            raise TypeError("main_function must be a callable")
        if fallback_function is not None and not callable(fallback_function):
            raise TypeError("fallback_function must be a callable or None")
        
        self.main_function = main_function
        self.fallback_function = fallback_function

    def execute(self, *args, **kwargs) -> any:
        """
        Executes the main function with given arguments. If an exception occurs,
        executes the fallback function (if provided) and returns its result.
        Otherwise, returns the result of the main function.

        Args:
            *args: Positional arguments to be passed to the functions.
            **kwargs: Keyword arguments to be passed to the functions.

        Returns:
            The result of the executed function or the fallback if an exception occurred.
        """
        try:
            return self.main_function(*args, **kwargs)
        except Exception as e:
            if self.fallback_function is not None:
                print(f"Error in main function: {e}. Executing fallback.")
                return self.fallback_function(*args, **kwargs)
            else:
                raise

# Example usage
def divide(a: int, b: int) -> float:
    """Divides two integers."""
    return a / b

def safe_divide(a: int, b: int) -> float:
    """Safe version of the divide function that handles division by zero."""
    if b == 0:
        print("Division by zero is not allowed.")
        return 1.0
    return a / b

fallback_executor = FallbackExecutor(divide, safe_divide)

# Normal execution
result = fallback_executor.execute(10, 2)
print(result)  # Output: 5.0

# Error scenario with fallback
result_with_fallback = fallback_executor.execute(10, 0)
print(result_with_fallback)  # Output: Division by zero is not allowed.
```

This Python code defines a class `FallbackExecutor` that wraps around two functions - the main one and an optional fallback. It demonstrates how to use this class for error recovery in function execution, specifically for handling division operations where division by zero might occur.