"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 01:57:04.179475
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for creating a fallback mechanism in function execution.
    
    This class provides an easy way to define a primary and secondary (fallback) callable functions
    that are used based on the success or failure of the primary function.
    
    Attributes:
        primary_func (Callable): The main function to be executed first.
        fallback_func (Callable): The secondary function that serves as a backup if the primary fails.
    """
    
    def __init__(self, primary_func: Callable, fallback_func: Callable):
        self.primary_func = primary_func
        self.fallback_func = fallback_func
    
    def execute_with_fallback(self) -> Any:
        try:
            result = self.primary_func()
        except Exception as e:
            print(f"Primary function failed with error: {e}")
            result = self.fallback_func()
        else:
            print("Primary function executed successfully.")
        finally:
            return result

# Example usage
def main_function() -> int:
    """A simple primary function that may fail."""
    try:
        1 / 0  # Intentional division by zero to simulate error
    except ZeroDivisionError as e:
        raise ValueError("Division by zero occurred") from e
    return 42

def fallback_function() -> int:
    """Fallback function which returns a default value when primary fails."""
    print("Executing fallback function.")
    return 0

# Creating the FallbackExecutor instance
executor = FallbackExecutor(main_function, fallback_function)

# Executing with fallback mechanism in place
result = executor.execute_with_fallback()
print(f"Result: {result}")
```