"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 05:31:03.846031
"""

```python
from typing import Any, Callable


class FallbackExecutor:
    """
    A class for executing a primary function with fallbacks in case of errors.
    
    Parameters:
        - primary_func: The main function to be executed.
        - fallback_funcs: A list of functions to try as fallbacks if the primary function fails.
        - error_handler: An optional callable that takes the exception and tries to recover or log it.
        
    Methods:
        - execute: Attempts to run the primary function with recovery mechanisms for errors.
    """
    
    def __init__(self, primary_func: Callable[..., Any], fallback_funcs: list[Callable[..., Any]], 
                 error_handler: Callable[[Exception], None] = lambda e: print(f"Error occurred: {e}")):
        self.primary_func = primary_func
        self.fallback_funcs = fallback_funcs
        self.error_handler = error_handler
    
    def execute(self, *args, **kwargs) -> Any:
        """
        Executes the primary function and handles errors by trying fallback functions.
        
        Parameters:
            - *args: Positional arguments to pass to the primary function.
            - **kwargs: Keyword arguments to pass to the primary function.
            
        Returns:
            The result of the first successful function execution or None if all fail.
        """
        for func in [self.primary_func] + self.fallback_funcs:
            try:
                return func(*args, **kwargs)
            except Exception as e:
                print(f"Failed to execute {func}: {e}")
                self.error_handler(e)
        
        return None


# Example usage

def main_function(x: int) -> str:
    if x < 0:
        raise ValueError("Negative numbers are not allowed")
    return f"The square of {x} is {x ** 2}"


def fallback_function_1(x: int) -> str:
    return f"Fallback result for negative number: {-x ** 2}"


def fallback_function_2(x: int) -> str:
    return f"Another fallback result: {abs(x) ** 3}"


if __name__ == "__main__":
    # Example with a positive integer
    print("Positive input:")
    executor = FallbackExecutor(primary_func=main_function, 
                                fallback_funcs=[fallback_function_1, fallback_function_2])
    print(executor.execute(5))
    
    # Example with a negative integer causing error in primary function
    print("\nNegative input (should use fallback):")
    print(executor.execute(-5))
```

This code defines a class `FallbackExecutor` that attempts to execute a primary function and, if it fails due to an exception, tries executing one or more fallback functions. The example usage demonstrates how the system can handle errors in the main function by gracefully falling back to alternative methods of achieving the desired result.