"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 08:05:50.014069
"""

```python
from typing import Callable, Any, Optional
import traceback


class FallbackExecutor:
    """
    A class for creating a fallback mechanism that executes a primary function
    and provides an alternative execution if an error occurs.
    
    :param primary_func: The main function to be executed.
    :param fallback_func: The function to be used as a fallback in case of errors.
    """

    def __init__(self, primary_func: Callable[..., Any], fallback_func: Callable[..., Any]):
        self.primary_func = primary_func
        self.fallback_func = fallback_func

    def execute(self, *args, **kwargs) -> Optional[Any]:
        """
        Execute the primary function with provided arguments.
        If an error occurs during execution, run the fallback function.
        
        :param args: Positional arguments for the functions.
        :param kwargs: Keyword arguments for the functions.
        :return: The result of the executed function or None in case of unrecoverable errors.
        """
        try:
            return self.primary_func(*args, **kwargs)
        except Exception as e:
            print(f"Error occurred while executing primary function: {e}")
            traceback.print_exc()
            fallback_result = self.fallback_func(*args, **kwargs) if callable(self.fallback_func) else None
            return fallback_result


# Example usage

def divide(a: int, b: int) -> float:
    """Divide two numbers."""
    return a / b


def safe_divide(a: int, b: int) -> Optional[float]:
    """Safe division handling zero division error with a fallback to 0.0."""
    if b == 0:
        print("Division by zero detected.")
        return 0.0
    return a / b


# Create FallbackExecutor instance
executor = FallbackExecutor(primary_func=divide, fallback_func=safe_divide)

# Example execution without error
print(executor.execute(10, 2))  # Output: 5.0

# Example execution with an error
print(executor.execute(10, 0))  # Output: Division by zero detected.
                                #         0.0
```