"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 09:11:00.727523
"""

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


class FallbackExecutor:
    """
    A class that provides a mechanism for executing tasks with fallbacks in case of errors.
    
    Attributes:
        executors (Dict[str, Callable[[], Any]]): A dictionary mapping names to callable functions which are executed.
        fallbacks (Dict[str, Callable[[], Any]]): A dictionary mapping names to callable fallback functions which are triggered if the primary function fails.
    """
    
    def __init__(self):
        self.executors = {}
        self.fallbacks = {}
    
    def register_executor(self, name: str, func: Callable[[], Any]):
        """Register an executor function with a specific name."""
        self.executors[name] = func
    
    def register_fallback(self, name: str, fallback: Callable[[], Any]):
        """Register a fallback function with the corresponding executor's name."""
        if name in self.executors:
            self.fallbacks[name] = fallback
        else:
            raise ValueError(f"No executor registered for {name}")
    
    def execute_with_fallback(self, name: str) -> Any:
        """
        Execute the registered task named by 'name'. If an error occurs during execution,
        attempt to use the corresponding fallback function.
        
        Returns:
            The result of the executed task or its fallback if available and relevant.
        """
        try:
            return self.executors[name]()
        except Exception as e:
            print(f"Execution failed: {e}")
            # Use the fallback
            try:
                return self.fallbacks[name]()
            except KeyError:
                raise RuntimeError("No fallback registered for this task") from e


# Example usage:

def task1() -> str:
    """Example primary function."""
    return "Task 1 completed successfully."

def task1_fallback() -> str:
    """Fallback function for task1 if it fails."""
    return "Failed to execute task1, using fallback."

def task2() -> int:
    """Another example primary function that can fail."""
    # Simulate a failure
    raise ValueError("Task 2 encountered an error!")
    
def task2_fallback() -> int:
    """Fallback for task2 if it fails."""
    return 0

# Creating the executor instance
executor = FallbackExecutor()

# Registering tasks and their corresponding fallbacks
executor.register_executor('task1', task1)
executor.register_fallback('task1', task1_fallback)

executor.register_executor('task2', task2)
executor.register_fallback('task2', task2_fallback)

# Executing the tasks with possible error recovery
try:
    print(executor.execute_with_fallback('task1'))
except Exception as e:
    print(f"Error during execution: {e}")

print(executor.execute_with_fallback('task2'))  # This should use fallback
```