"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 04:44:01.811887
"""

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


class FallbackExecutor:
    """
    A class designed to execute a task and provide fallback execution if the primary function fails.
    
    :param primary_func: The main function to execute.
    :param fallback_func: The secondary function to be used when primary_func raises an error.
    """

    def __init__(self, primary_func: Callable[..., Any], fallback_func: Callable[..., Any]):
        self.primary_func = primary_func
        self.fallback_func = fallback_func

    def run(self, *args: Any, **kwargs: Any) -> Any:
        """
        Attempts to execute the primary function. If an error occurs, it falls back to executing the secondary function.

        :param args: Arguments to pass to both functions.
        :param kwargs: Keyword arguments to pass to both functions.
        :return: The result of either the primary or fallback function execution.
        """
        try:
            return self.primary_func(*args, **kwargs)
        except Exception as e:
            print(f"Primary function failed with error: {e}")
            return self.fallback_func(*args, **kwargs)


# Example usage

def primary_math_operation(a: int, b: int) -> int:
    """Example of a basic math operation."""
    return a + b


def fallback_math_operation(a: int, b: int) -> int:
    """Fallback example for the math operation with error handling."""
    return 0  # Fallback to returning zero if an error occurs in primary function


if __name__ == "__main__":
    executor = FallbackExecutor(primary_func=primary_math_operation,
                                fallback_func=fallback_math_operation)
    
    result = executor.run(5, b=10)  # Expected output: 15
    print(result)

    # Introduce an error by passing a non-integer value to demonstrate fallback mechanism
    try:
        erroneous_result = executor.run('a', b='b')  # Expected output: 0 (fallback)
    except Exception as e:
        print(f"Caught exception in example usage: {e}")
```