"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 06:17:32.837218
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class that provides a fallback mechanism for executing functions.
    
    If the primary function raises an exception, the fallback function is executed instead.
    """

    def __init__(self, primary_func: Callable[[], Any], fallback_func: Callable[[], Any]):
        """
        Initialize the FallbackExecutor with both primary and fallback functions.

        :param primary_func: The main function to execute, which may raise an exception.
        :param fallback_func: The function to execute if an exception is raised by the primary function.
        """
        self.primary_func = primary_func
        self.fallback_func = fallback_func

    def run(self) -> Any:
        """
        Execute the primary function. If it raises an exception, call the fallback function.

        :return: The result of the primary or fallback function execution.
        """
        try:
            return self.primary_func()
        except Exception as e:
            print(f"An error occurred with {self.primary_func.__name__}: {e}")
            return self.fallback_func()


# Example usage
def division(a, b):
    """Divide a by b."""
    return a / b


def fallback_division():
    """Fallback function for division when exception is raised."""
    print("Using fallback because of division error.")
    return 0.0

executor = FallbackExecutor(division, fallback_division)
result = executor.run(a=10, b=0)  # This will trigger the fallback
print(f"Result: {result}")

# Another usage example with different functions
def concatenate_strings(a, b):
    """Concatenate two strings."""
    return a + b


def fallback_concat():
    """Fallback function for string concatenation."""
    print("Using fallback because of concatenation error.")
    return "Default"

string_executor = FallbackExecutor(concatenate_strings, fallback_concat)
result2 = string_executor.run(a="Hello", b=123)  # This will trigger the fallback
print(f"Result: {result2}")
```