"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 09:11:14.492293
"""

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


class FallbackExecutor:
    """
    A class for executing functions with fallback handling.

    This class provides a mechanism to execute a primary function and,
    if it fails, try an alternative function or perform a default action.
    It allows graceful error recovery in scenarios where critical errors
    might occur during the execution of the main task.

    :param primary_func: The main function to be executed.
    :type primary_func: Callable[..., Any]
    :param fallback_func: An optional secondary function to execute if the primary fails. Can be None.
    :type fallback_func: Optional[Callable[..., Any]]
    :param default_action: A default action to take if both functions fail. Can be any callable or a constant value.
    :type default_action: Callable[..., Any] or Any
    """

    def __init__(self, primary_func: Callable[..., Any], fallback_func: Optional[Callable[..., Any]] = None,
                 default_action: Any = None) -> None:
        self.primary_func = primary_func
        self.fallback_func = fallback_func
        self.default_action = default_action

    def execute(self, *args: Any, **kwargs: Any) -> Any:
        """
        Execute the primary function with provided arguments. If it raises an exception,
        attempt to use a fallback function or perform a default action.

        :param args: Positional arguments for the functions.
        :param kwargs: Keyword arguments for the functions.
        :return: The result of the successful execution, or the result of the default action if all fail.
        """
        try:
            return self.primary_func(*args, **kwargs)
        except Exception as primary_error:
            fallback_result = None
            if self.fallback_func is not None:
                try:
                    fallback_result = self.fallback_func(*args, **kwargs)
                except Exception as fallback_error:
                    pass  # Both functions failed

            return fallback_result or self.default_action


# Example usage
def primary_task(a: int, b: int) -> int:
    """Multiply two numbers."""
    return a * b


def secondary_task(a: int, b: int) -> int:
    """Divide the first number by the second (if not zero)."""
    if b != 0:
        return a / b
    else:
        raise ValueError("Division by zero is not allowed.")


def default_action(a: int, b: int) -> str:
    """Provide a fallback message."""
    return f"Failed to perform operation with values {a} and {b}"


# Create an instance of FallbackExecutor
executor = FallbackExecutor(primary_task, secondary_task, default_action)

# Test the example usage
print(executor.execute(10, 5))  # Should print 50 (primary task)
print(executor.execute(10, 0))  # Should use secondary task and return 2.0
print(executor.execute(10, 'a'))  # Should use default action and return "Failed to perform operation with values 10 and a"
```