"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 18:32:06.176649
"""

```python
class FallbackExecutor:
    """
    A class for executing tasks with fallback mechanisms in case of errors.

    This class provides a way to run a series of functions as commands.
    If an error occurs during execution, it will attempt to execute the fallback function.
    """

    def __init__(self, primary_function: callable, fallback_function: callable):
        """
        Initialize FallbackExecutor with primary and fallback functions.

        :param primary_function: The main function to be executed. Must accept no arguments.
        :param fallback_function: The function to be executed in case of an error in the primary function.
                                   Must accept no arguments as well.
        """
        self.primary_function = primary_function
        self.fallback_function = fallback_function

    def execute(self) -> None:
        """
        Execute the primary function. If it fails, call the fallback function.

        :return: None
        """
        try:
            print("Executing primary function...")
            self.primary_function()
        except Exception as e:
            print(f"An error occurred while executing the primary function: {e}")
            print("Falling back to secondary function...")
            self.fallback_function()

def sample_primary_task() -> None:
    """A sample task that may fail."""
    # Simulate a failure
    1 / 0

def sample_fallback_task() -> None:
    """Fallback task in case of an error."""
    print("Executing fallback task. Error handled.")

# Example usage
if __name__ == "__main__":
    primary = sample_primary_task
    fallback = sample_fallback_task
    
    executor = FallbackExecutor(primary, fallback)
    executor.execute()
```

This code defines a `FallbackExecutor` class that can be used to implement error recovery in Python by defining a primary function and its fallback. The example usage demonstrates how to use this class with two simple functions.