"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 02:34:57.861905
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class that provides a fallback mechanism for executing functions.
    
    This class allows you to define a primary function and one or more fallback functions,
    which will be tried in sequence if the primary function raises an exception.
    
    Args:
        primary_function (Callable): The main function to try first.
        *fallback_functions (Callable): Additional functions that can be used as fallbacks.
    """
    
    def __init__(self, primary_function: Callable[..., Any], *fallback_functions):
        self.primary = primary_function
        self.fallbacks = list(fallback_functions)
        
    def execute(self) -> Any:
        """
        Execute the primary function and catch any exceptions.
        If an exception occurs, attempt to run each fallback in sequence.
        
        Returns:
            The result of the successfully executed function or None if all failed.
        """
        try:
            return self.primary()
        except Exception as e:
            for fallback in self.fallbacks:
                try:
                    return fallback()
                except Exception:
                    continue
        return None


# Example usage

def primary_data_source() -> str:
    """Primary function that may fail."""
    raise ValueError("Failed to retrieve data from primary source")
    
def secondary_data_source() -> str:
    """Fallback function 1."""
    return "Data retrieved from secondary source"
    
def tertiary_data_source() -> str:
    """Fallback function 2."""
    return "Data retrieved from tertiary source"

fallback_executor = FallbackExecutor(primary_data_source, secondary_data_source, tertiary_data_source)

# Execution
result = fallback_executor.execute()
print(f"Result: {result}")
```

This example demonstrates how to use the `FallbackExecutor` class. The primary data retrieval function is expected to fail with a specific exception for this example, but in practice, it could fail due to various reasons like network issues or database errors. The fallback functions are then used to attempt to retrieve the data from alternative sources.