"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 02:38:48.414536
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing a function with fallback handling.
    
    This executor attempts to execute a given function. If an error occurs,
    it attempts to call a fallback function provided by the user.
    
    Attributes:
        func (Callable): The main function to be executed.
        fallback (Callable): The fallback function to be called on failure.
    """
    
    def __init__(self, func: Callable, *, fallback: Callable = None):
        self.func = func
        self.fallback = fallback
    
    def execute(self, *args, **kwargs) -> Any:
        try:
            return self.func(*args, **kwargs)
        except Exception as e:
            if self.fallback is not None:
                print(f"Error occurred: {e}")
                return self.fallback(*args, **kwargs)
            else:
                raise
    
    def __call__(self, *args, **kwargs) -> Any:
        return self.execute(*args, **kwargs)


# Example usage
def main_function(x):
    result = 1 / x
    return result

def fallback_function(x):
    return None


executor = FallbackExecutor(main_function, fallback=fallback_function)
result = executor(0)  # This will trigger the fallback function because division by zero occurs.
print(f"Result: {result}")

# Another usage with no fallback provided for an error
try:
    result_no_fallback = executor(1)  # No exception since valid input is provided.
except Exception as e:
    print(f"Caught expected exception: {e}")
```