"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 11:48:29.473312
"""

```python
class FallbackExecutor:
    """
    A class for executing tasks with a fallback mechanism in case of errors.
    
    Parameters:
        - primary_func: The main function to execute. It should take arguments that are passed from `execute`.
        - backup_func: An optional secondary function used as a fallback if the primary function fails.

    Methods:
        - execute(*args, **kwargs): Attempts to run `primary_func` with provided arguments.
                                    If it raises an exception, attempts to run `backup_func` instead.
    """
    
    def __init__(self, primary_func: callable, backup_func: callable = None):
        self.primary_func = primary_func
        self.backup_func = backup_func

    def execute(self, *args, **kwargs) -> any:
        """
        Executes the main function and handles exceptions by falling back to a secondary function if needed.
        
        Args:
            - *args: Positional arguments passed to `primary_func`.
            - **kwargs: Keyword arguments passed to `primary_func`.

        Returns:
            The result of the executed function or None in case of failure.
        """
        try:
            return self.primary_func(*args, **kwargs)
        except Exception as e:
            if self.backup_func is not None:
                print(f"Primary function failed with error: {e}. Trying backup function...")
                return self.backup_func(*args, **kwargs)
            else:
                print(f"No fallback available. Primary function failed with error: {e}")
                return None

# Example usage
def divide(a: int, b: int) -> float:
    """Divides two numbers."""
    return a / b

def safe_divide(a: int, b: int) -> float:
    """Safely divides two numbers. Fallbacks to returning 0 if division by zero is attempted."""
    try:
        return divide(a, b)
    except ZeroDivisionError:
        print("Attempted to divide by zero.")
        return 0

fallback_executor = FallbackExecutor(divide, safe_divide)

# Test cases
result1 = fallback_executor.execute(10, 2)  # Should be 5.0
print(result1)

result2 = fallback_executor.execute(10, 0)  # Should trigger the backup function due to division by zero
print(result2)
```