"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 16:51:55.762291
"""

```python
from typing import Callable, Any, Dict


class FallbackExecutor:
    """
    A class for handling function execution with fallbacks in case of errors.
    
    Attributes:
        executors (Dict[str, Callable]): Mapping from error messages to error handlers.
        default_handler (Callable): The handler called if no specific error handler is found.
        
    Methods:
        add_error_handler: Adds an error handler for a specific error message.
        execute_with_fallbacks: Executes a function and handles errors using registered fallbacks.
    """
    
    def __init__(self):
        self.executors = {}
        self.default_handler = None
    
    def add_error_handler(self, error_message: str, handler: Callable) -> None:
        """Adds an error handler for a specific error message.

        Args:
            error_message (str): The error message to handle.
            handler (Callable): The function to call when the error occurs.
        """
        self.executors[error_message] = handler
    
    def set_default_handler(self, handler: Callable) -> None:
        """Sets the default handler for errors that do not have a specific handler.

        Args:
            handler (Callable): The default function to call when no specific error handler is found.
        """
        self.default_handler = handler

    def execute_with_fallbacks(self, func: Callable[..., Any], *args, **kwargs) -> Any:
        """Executes the given function with fallback handlers for errors.

        Args:
            func (Callable): The function to be executed.
            *args: Variable length argument list to pass to `func`.
            **kwargs: Arbitrary keyword arguments to pass to `func`.

        Returns:
            Any: The result of the function execution or error handler if an exception is caught.
        
        Raises:
            Exception: If no default_handler is set and all registered handlers fail.
        """
        try:
            return func(*args, **kwargs)
        except Exception as e:
            error_message = str(e)
            for message, handler in self.executors.items():
                if message in error_message:
                    return handler(*args, **kwargs)
            if self.default_handler:
                return self.default_handler(*args, **kwargs)
            else:
                raise


# Example usage
def divide_numbers(x: int, y: int) -> float:
    """Divides two numbers."""
    return x / y

def division_error_handler(x: int, y: int) -> float:
    """Fallback handler for division by zero errors."""
    print("Handling division by zero error.")
    return 0.0

fallback_executor = FallbackExecutor()
fallback_executor.add_error_handler('division', division_error_handler)
fallback_executor.set_default_handler(lambda *args, **kwargs: "Unexpected error occurred.")

result = fallback_executor.execute_with_fallbacks(divide_numbers, 10, 2)  # Result: 5.0
print(result)

# Example with a known exception
result = fallback_executor.execute_with_fallbacks(divide_numbers, 10, 0)  # Result: Handling division by zero error.
print(result)
```