"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 14:07:37.525619
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing a function with fallback support.

    This class allows you to execute a primary function and provides an option
    to run a fallback function if the primary function fails or returns an error.
    """

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

        :param primary_function: The main function to execute
        :param fallback_function: An optional fallback function to run in case of errors
        """
        self.primary_function = primary_function
        self.fallback_function = fallback_function

    def execute(self) -> Any:
        """
        Execute the primary function. If it raises an error, attempt to use the fallback function.

        :return: The result of the executed function or the fallback if applicable.
        """
        try:
            return self.primary_function()
        except Exception as e:
            if self.fallback_function is not None:
                print(f"Primary function failed with error: {e}. Executing fallback.")
                return self.fallback_function()
            else:
                raise

    def __call__(self, *args: Any, **kwargs: Any) -> Any:
        """
        Call the FallbackExecutor as if it were a regular function.

        :param args: Arguments to pass to the primary and fallback functions
        :param kwargs: Keyword arguments to pass to the primary and fallback functions
        :return: The result of the executed function or the fallback if applicable.
        """
        return self.execute()


def example_primary_function() -> str:
    """A simple function that may fail."""
    try:
        # Simulate a failure scenario with a file operation
        open("nonexistentfile.txt", "r").read()
    except FileNotFoundError as e:
        raise ValueError(f"File not found: {e}")
    else:
        return "Primary function succeeded"


def example_fallback_function() -> str:
    """A fallback function to handle failures."""
    print("Fallback function executed.")
    return "Fallback function returned this result."


# Example usage
if __name__ == "__main__":
    # Create a FallbackExecutor instance with both primary and fallback functions
    fallback_executor = FallbackExecutor(
        primary_function=example_primary_function,
        fallback_function=example_fallback_function
    )

    # Execute the fallback executor. It should execute the fallback function due to simulated failure.
    result = fallback_executor()
    print(f"Result: {result}")
```