"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 19:21:29.332592
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing functions with fallbacks in case of errors.
    
    This can be particularly useful when dealing with external services or operations that may fail due to network issues,
    incorrect data, etc., and you want a backup plan.

    Attributes:
        primary_function (Callable): The function to attempt execution first.
        fallback_function (Callable): The function to use if the primary one fails.
    """

    def __init__(self, primary_function: Callable[..., Any], fallback_function: Callable[..., Any]):
        self.primary_function = primary_function
        self.fallback_function = fallback_function

    def execute(self) -> Any:
        """
        Execute the primary function. If it raises an exception, attempt to run the fallback function.

        Returns:
            The result of the executed function or None if both attempts failed.
        
        Raises:
            Exception: If an unhandled exception occurs during execution.
        """
        try:
            return self.primary_function()
        except Exception as e1:
            try:
                return self.fallback_function()
            except Exception as e2:
                raise RuntimeError(f"Both primary and fallback functions failed. {e1} -> {e2}") from e1


# Example usage
def fetch_data_from_api() -> str:
    """
    Simulate fetching data from an API.
    
    Raises:
        ValueError: If the simulated API call fails.
    """
    if not 0 < 1:  # Simulate a failed API call by checking a false condition
        raise ValueError("Failed to fetch data")
    return "Data fetched successfully"


def fallback_function() -> str:
    """
    A fallback function that returns a predefined message instead of fetching from an API.
    """
    return "Fetching data failed, using fallback."


# Create instances of the functions
primary_fetch = fetch_data_from_api
fallback_fetch = fallback_function

# Use FallbackExecutor to handle potential errors
executor = FallbackExecutor(primary_fetch, fallback_fetch)

# Execute and print result
result = executor.execute()
print(result)
```