"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 12:39:55.946711
"""

```python
class FallbackExecutor:
    """
    A class designed to execute a function with fallback mechanisms in case of errors.
    
    Attributes:
        func (Callable): The main function to be executed.
        fallback_func (Callable or None): Optional fallback function to run if the main function fails.
    
    Methods:
        execute: Attempts to execute the main function and handles exceptions by executing the fallback function if provided.
    """
    
    def __init__(self, func, fallback_func=None):
        self.func = func
        self.fallback_func = fallback_func
    
    def _execute_with_error_handling(self, *args, **kwargs) -> None:
        try:
            self.func(*args, **kwargs)
        except Exception as e:
            if self.fallback_func is not None:
                print(f"Error occurred: {e}. Executing fallback function.")
                self.fallback_func()
            else:
                raise
    
    def execute(self, *args, **kwargs) -> None:
        """
        Executes the main function with error handling. If an error occurs, it attempts to run a fallback function.
        
        Args:
            *args: Positional arguments passed to the main and fallback functions if provided.
            **kwargs: Keyword arguments passed to the main and fallback functions if provided.
        """
        self._execute_with_error_handling(*args, **kwargs)


# Example usage
def divide_and_log(a: int, b: int) -> None:
    """Divides a by b and logs the result."""
    print(f"Result of {a} / {b}: {a / b}")

def log_error() -> None:
    """Logs an error message when fallback is triggered."""
    print("Falling back due to an error.")


# Create a FallbackExecutor instance
executor = FallbackExecutor(divide_and_log, fallback_func=log_error)

# Example of normal execution
executor.execute(10, 2)  # Should log the result: 5.0

# Example where fallback is triggered
try:
    executor.execute(10, 0)  # Division by zero error will occur and fallback should be triggered
except Exception as e:
    print(f"Error caught during execution: {e}")
```

This code defines a `FallbackExecutor` class that wraps around any function you want to execute. It includes an optional fallback mechanism to handle errors gracefully. The example usage demonstrates how to create such an executor and use it with both successful and unsuccessful calls.