"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 02:33:39.994499
"""

```python
class FallbackExecutor:
    """
    A class for creating a fallback executor that handles limited error recovery.

    Attributes:
        primary_func (callable): The main function to execute.
        fallback_func (callable): The backup function to use if an exception occurs in the primary function.
    
    Methods:
        run: Executes the primary function and handles exceptions by falling back to the secondary function.
    """

    def __init__(self, primary_func: callable, fallback_func: callable):
        """
        Initialize FallbackExecutor with a primary and fallback function.

        Args:
            primary_func (callable): The main function to execute.
            fallback_func (callable): The backup function in case of errors.
        """
        self.primary_func = primary_func
        self.fallback_func = fallback_func

    def run(self, *args, **kwargs) -> any:
        """
        Execute the primary function with provided arguments.

        If an exception occurs during execution, attempt to use the fallback function.
        
        Args:
            args: Positional arguments for the functions.
            kwargs: Keyword arguments for the functions.

        Returns:
            The result of the successfully executed function or None if both fail.
        """
        try:
            return self.primary_func(*args, **kwargs)
        except Exception as e:
            print(f"An error occurred in primary function: {e}")
            try:
                return self.fallback_func(*args, **kwargs)
            except Exception as e:
                print(f"Fallback failed with exception: {e}")
                return None


# Example usage
def primary_operation(x):
    """Divide x by 2."""
    return x / 2

def fallback_operation(x):
    """Double the input value."""
    return x * 2

executor = FallbackExecutor(primary_operation, fallback_operation)

result = executor.run(10)  # Should print "An error occurred in primary function: division by zero" and return 20
print(result)
```