"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-05 21:55:53.497556
"""

```python
from typing import Any, Callable, Dict, Optional


class FallbackExecutor:
    """
    A class that provides a mechanism for executing functions with fallbacks.

    Args:
        primary_func: The main function to execute.
        fallback_func: The function to use if the primary function fails or returns an error.
        error_handler: An optional custom handler to process exceptions raised by the primary function.
    """

    def __init__(self, primary_func: Callable[[], Any], fallback_func: Callable[[], Any],
                 error_handler: Optional[Callable[[Exception], None]] = None):
        self.primary_func = primary_func
        self.fallback_func = fallback_func
        self.error_handler = error_handler

    def execute(self) -> Any:
        """
        Execute the primary function. If it fails, use the fallback function.

        Returns:
            The result of the successful function execution.
        Raises:
            Exception: If neither the primary nor the fallback functions succeed and an exception is raised.
        """
        try:
            return self.primary_func()
        except Exception as e:
            if self.error_handler:
                self.error_handler(e)
            return self.fallback_func()

    @staticmethod
    def handle_exception(exc: Exception) -> None:
        """
        A simple error handler that prints the exception.

        Args:
            exc (Exception): The exception to handle.
        """
        print(f"An error occurred: {exc}")


# Example usage

def primary_function() -> int:
    """A function that attempts to perform a division operation."""
    try:
        result = 10 / 0  # Intentional error
        return result
    except ZeroDivisionError as e:
        raise Exception("Cannot divide by zero.") from e


def fallback_function() -> int:
    """A simple fallback function returning a default value."""
    print("Using fallback function due to an error.")
    return 15


# Create an instance of FallbackExecutor
executor = FallbackExecutor(primary_func=primary_function, fallback_func=fallback_function)

# Execute the functions with potential for fallbacks.
try:
    result = executor.execute()
    print(f"Primary function returned: {result}")
except Exception as e:
    print(f"Error occurred during execution: {e}")


# Optionally use a custom error handler
custom_error_handler = FallbackExecutor.handle_exception

executor_with_handler = FallbackExecutor(primary_func=primary_function, fallback_func=fallback_function,
                                         error_handler=custom_error_handler)
result_with_handler = executor_with_handler.execute()
print(f"Result with custom handler: {result_with_handler}")
```