"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 05:07:07.886858
"""

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

    Attributes:
        primary_func (callable): The main function to be executed.
        fallback_func (callable): The function to be executed if an error occurs in the primary function.
        error_types (tuple[type[BaseException]]): Tuple containing exception types to catch.

    Methods:
        execute: Executes the primary function and handles exceptions by running the fallback function.
    """

    def __init__(self, primary_func: callable, fallback_func: callable, error_types: tuple[type[BaseException]] = ()):
        """
        Initialize FallbackExecutor with primary and fallback functions.

        Args:
            primary_func (callable): The main function to be executed.
            fallback_func (callable): The function to be executed if an error occurs in the primary function.
            error_types (tuple[type[BaseException]], optional): Exception types to catch. Defaults to empty tuple.
        """
        self.primary_func = primary_func
        self.fallback_func = fallback_func
        self.error_types = error_types

    def execute(self, *args, **kwargs) -> any:
        """
        Execute the main function and handle errors by running the fallback function.

        Args:
            *args: Positional arguments passed to the primary function.
            **kwargs: Keyword arguments passed to the primary function.

        Returns:
            The result of the primary or fallback function execution based on success or failure.

        Raises:
            Any exception not caught in error_types if neither function executes successfully.
        """
        try:
            return self.primary_func(*args, **kwargs)
        except self.error_types as e:
            print(f"An error occurred: {e}")
            return self.fallback_func(*args, **kwargs)


# Example usage
def main_function(x):
    """Main function that may raise an error."""
    if x < 0:
        raise ValueError("Negative value not allowed.")
    return x * 10

def fallback_function(x):
    """Fallback function to be executed in case of errors."""
    print(f"Falling back with input: {x}")
    return -x * 5


# Creating an instance
executor = FallbackExecutor(primary_func=main_function, fallback_func=fallback_function)

# Example calls
result1 = executor.execute(10)  # Normal execution
print(result1)  # Output: 100

result2 = executor.execute(-5)  # Error and fallback
print(result2)  # Output: Falling back with input: -5
```

This code defines a `FallbackExecutor` class to handle tasks that might fail, providing a way to execute a fallback function when an error occurs in the primary one. It includes examples of how to use this class to manage potential errors gracefully.