"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 19:33:16.312553
"""

```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.
    
    Attributes:
        executors: A dictionary mapping function names to the corresponding function objects.
        fallbacks: A dictionary mapping function names to their fallback function objects. If an error occurs during
                   the execution of a primary function, its associated fallback will be executed instead.
    """
    
    def __init__(self):
        self.executors: Dict[str, Callable] = {}
        self.fallbacks: Dict[str, Callable] = {}
        
    def add_executor(self, func_name: str, func: Callable) -> None:
        """Add a function as an executor."""
        if func_name not in self.executors and callable(func):
            self.executors[func_name] = func
        else:
            raise ValueError(f"Executor {func_name} already exists or is not callable.")
    
    def add_fallback(self, func_name: str, fallback: Callable) -> None:
        """Add a fallback function for an executor."""
        if func_name in self.executors and callable(fallback):
            self.fallbacks[func_name] = fallback
        else:
            raise ValueError(f"No such executor {func_name} exists or provided fallback is not callable.")
    
    def execute(self, func_name: str, *args: Any, **kwargs: Any) -> Any:
        """Execute the function and handle errors by using a fallback if available."""
        try:
            return self.executors[func_name](*args, **kwargs)
        except Exception as e:
            print(f"An error occurred while executing {func_name}: {e}")
            if func_name in self.fallbacks:
                return self.fallbacks[func_name](*args, **kwargs)
            else:
                raise

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

def safe_divide(a: int, b: int) -> float:
    """Safe version of division that handles division by zero."""
    if b == 0:
        print("Division by zero detected! Returning 0.")
        return 0.0
    return divide(a, b)

fallback_executor = FallbackExecutor()
fallback_executor.add_executor('divide', divide)
fallback_executor.add_fallback('divide', safe_divide)

# Test the fallback mechanism
try:
    result = fallback_executor.execute('divide', 10, 0)
except Exception as e:
    print(f"Caught an exception: {e}")
else:
    print(f"Result of division is: {result}")

try:
    result = fallback_executor.execute('divide', 10, 2)
    print(f"Result of division is: {result}")
except Exception as e:
    print(f"Caught an exception: {e}")
```