"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 04:30:29.757249
"""

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


class FallbackExecutor:
    """
    A class that provides a mechanism for executing functions with fallbacks in case of errors.
    
    Parameters:
    - default_func: The function to be executed if all primary functions fail.
    - error_handlers: A dictionary mapping exception types to their respective handler functions.

    Methods:
    - execute: Executes the given function and handles any encountered exceptions using the provided handlers.
    """

    def __init__(self, default_func: Callable[[], Any], error_handlers: Dict[type, Callable[[Exception], None]] = {}):
        self.default_func = default_func
        self.error_handlers = error_handlers

    def execute(self, func: Callable[[], Any]) -> Any:
        """
        Executes the provided function and handles any encountered exceptions.

        If an exception is raised and a corresponding handler exists,
        it calls that handler. Otherwise, it attempts to execute the default function.
        
        Parameters:
        - func: The function to be executed.

        Returns:
        - The result of the successful execution or the default function's result if all fail.
        """
        try:
            return func()
        except Exception as e:
            for exception_type, handler in self.error_handlers.items():
                if isinstance(e, exception_type):
                    handler(e)
                    break
            else:
                return self.default_func()


# Example usage:

def primary_function() -> int:
    """A function that should raise an error to demonstrate fallback."""
    print("This is the main function before the error.")
    raise ValueError("An intentional error for demonstration")
    # Normally, this would perform a task and return a result.
    return 42


def handle_value_error(e: ValueError) -> None:
    """A handler for ValueErrors."""
    print(f"Caught an ValueError: {e}. Attempting fallback.")


# Creating the fallback executor with custom error handlers
fallback_executor = FallbackExecutor(
    default_func=lambda: primary_function(), 
    error_handlers={
        ValueError: handle_value_error,
        # Add more exception types and their corresponding handlers if necessary.
    }
)

# Executing a function that may or may not raise an error, depending on the outcome of primary_function
result = fallback_executor.execute(lambda: primary_function())
print(f"The result after fallback execution is: {result}")
```