"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 14:21:29.474797
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class that provides a mechanism for executing functions with fallbacks in case of errors.
    
    Attributes:
        primary_function (Callable): The main function to be executed.
        fallback_function (Callable): The function to be used as a fallback if the primary function fails.
    """

    def __init__(self, primary_function: Callable, fallback_function: Callable):
        """
        Initialize FallbackExecutor with primary and fallback functions.

        Args:
            primary_function (Callable): The main function to execute.
            fallback_function (Callable): The backup function to use in case of failure.
        """
        self.primary_function = primary_function
        self.fallback_function = fallback_function

    def __call__(self, *args: Any, **kwargs: Any) -> Any:
        """
        Execute the primary function; if it fails, call the fallback function.

        Args:
            *args: Positional arguments to pass to both functions.
            **kwargs: Keyword arguments to pass to both functions.

        Returns:
            The result of the primary function or the fallback function if an exception occurs.
        """
        try:
            return self.primary_function(*args, **kwargs)
        except Exception as e:
            print(f"An error occurred: {e}")
            return self.fallback_function(*args, **kwargs)


def example_primary_function(x: int) -> str:
    """Convert an integer to a string and reverse it."""
    result = str(x)[::-1]
    if not result.isdigit():
        raise ValueError("Result should be a numeric string")
    return result


def example_fallback_function(x: int) -> str:
    """Return the integer as its original string form, without reversing it."""
    return str(x)


# Example usage
if __name__ == "__main__":
    primary = example_primary_function
    fallback = example_fallback_function
    
    fallback_executor = FallbackExecutor(primary, fallback)
    
    # Test with a valid input
    print(fallback_executor(12345))  # Should reverse the number as expected
    
    # Test with an invalid input to trigger the fallback
    try:
        print(fallback_executor(-67890))
    except ValueError as e:
        print(f"Caught an error: {e}")
```

This code snippet provides a `FallbackExecutor` class that can be used to handle limited error recovery by executing primary and fallback functions. The example usage demonstrates how to implement the `FallbackExecutor` with two sample functions, one for successful execution and another as a fallback in case of errors.