"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 23:26:16.426804
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for creating a fallback execution mechanism.
    
    This allows defining a primary function to be executed and one or more fallback functions that will be tried in sequence if the primary function fails.
    """

    def __init__(self, primary: Callable[[], Any], *fallbacks: Callable[[], Any]):
        """
        Initialize the FallbackExecutor with a primary function and optional fallback functions.

        :param primary: The main function to execute. Should return any type.
        :param fallbacks: A sequence of functions that serve as fallbacks, in order of preference.
        """
        self.primary = primary
        self.fallbacks = fallbacks

    def execute(self) -> Any:
        """
        Execute the primary function and handle errors by trying each fallback sequentially.

        :return: The result of the successfully executed function or None if all fail.
        """
        try:
            return self.primary()
        except Exception as e:
            for fallback in self.fallbacks:
                try:
                    return fallback()
                except Exception as fe:
                    continue
        return None


# Example usage
def primary_function() -> int:
    """A simple function that may fail and should be executed first."""
    result = 42 / 0  # This will raise a ZeroDivisionError
    print(f"Primary: {result}")
    return result


def fallback1() -> int:
    """A fallback function to replace the primary one in case of failure."""
    print("Fallback 1 is running...")
    return 100 + 50


def fallback2() -> int:
    """Another fallback function."""
    print("Fallback 2 is running...")
    return 300 - 70


# Create a FallbackExecutor instance
fallback_executor = FallbackExecutor(primary_function, fallback1, fallback2)

# Execute the executor and handle its result
result = fallback_executor.execute()
if result is not None:
    print(f"Successfully executed with result: {result}")
else:
    print("All functions failed.")
```