"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 09:27:50.565191
"""

```python
class FallbackExecutor:
    """
    A class for creating a fallback mechanism in case an operation fails.
    
    The `execute_with_fallback` method attempts to execute a given function.
    If it fails due to any exception, a predefined fallback function is called instead.
    
    Example usage:
    >>> def critical_operation():
    ...     print("Executing critical operation")
    ...
    >>> def fallback_operation():
    ...     print("Executing fallback operation due to failure")
    ...
    >>> executor = FallbackExecutor(fallback_operation)
    >>> try:
    ...     result = executor.execute_with_fallback(critical_operation)
    ... except Exception as e:
    ...     print(f"Caught exception: {e}")
    ...
    Executing critical operation
    <Output of critical_operation>
    
    >>> try:
    ...     result = executor.execute_with_fallback(critical_operation, raise_on_fail=True)
    ... except Exception as e:
    ...     print(f"Caught exception: {e}")
    ...
    Executing critical operation
    Caught exception: [Exception details here]
    Executing fallback operation due to failure
    <Output of fallback_operation>
    
    Args:
        fallback_func (Callable): The function to be called if the main function fails.
    """
    
    def __init__(self, fallback_func: callable):
        self.fallback_func = fallback_func
    
    def execute_with_fallback(self, func: callable, *args, raise_on_fail=False, **kwargs) -> None:
        """
        Attempt to execute 'func' with given arguments. If an exception is raised,
        call the fallback function.
        
        Args:
            func (Callable): The main function to be executed.
            *args: Positional arguments for `func`.
            raise_on_fail (bool): Whether to re-raise the exception if it occurs. Default is False.
            **kwargs: Keyword arguments for `func`.
            
        Returns:
            None
        """
        try:
            return func(*args, **kwargs)
        except Exception as e:
            self.fallback_func()
            if raise_on_fail:
                raise

# Example usage
def critical_operation():
    print("Executing critical operation")
    # Simulate a failure for demonstration purposes
    1 / 0

def fallback_operation():
    print("Executing fallback operation due to failure")

executor = FallbackExecutor(fallback_operation)
try:
    result = executor.execute_with_fallback(critical_operation)
except Exception as e:
    print(f"Caught exception: {e}")

try:
    result = executor.execute_with_fallback(critical_operation, raise_on_fail=True)
except Exception as e:
    print(f"Caught exception: {e}")
```