"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 06:34:28.354782
"""

```python
from typing import Callable, Optional


class FallbackExecutor:
    """
    A class for executing functions with fallback behavior in case of errors.
    
    This helps in scenarios where a primary function might fail due to unexpected issues,
    and a secondary (fallback) function should be used instead. The fallback function can
    also have its own arguments which are passed when invoked.
    """

    def __init__(self, primary_function: Callable, fallback_function: Optional[Callable] = None):
        """
        Initialize the FallbackExecutor with both primary and optional fallback functions.

        :param primary_function: A callable that is executed first. Expected to take no arguments for simplicity.
        :param fallback_function: A callable that acts as a backup if the primary function fails. Also expected to take no arguments.
        """
        self.primary_function = primary_function
        self.fallback_function = fallback_function

    def execute(self) -> Optional[str]:
        """
        Execute the primary function and return its result or switch to fallback on error.

        :return: The output of the executed function, or None in case both functions fail.
        """
        try:
            # Simulate a context where the function might raise an exception
            if self.primary_function is not None:
                return self.primary_function()
        except Exception as e:
            print(f"Primary function failed with error: {e}")
        
        if self.fallback_function is not None:
            try:
                return self.fallback_function()
            except Exception as e:
                print(f"Fallback function failed with error: {e}")
        
        return None


# Example usage

def primary_operation() -> str:
    """Primary operation that might fail"""
    raise ValueError("Primary operation went wrong")
    
def fallback_operation() -> str:
    """Fallback operation to be used in case of failure"""
    return "Executing fallback operation"


if __name__ == "__main__":
    # Create an instance with both functions
    executor = FallbackExecutor(primary_operation, fallback_operation)
    
    result = executor.execute()
    print(f"Result: {result}")
```

This Python code defines a `FallbackExecutor` class that can be used to run a primary function and switch to a fallback one if the first fails. The example usage demonstrates how to use it with simple functions.