"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 11:10:57.470334
"""

```python
class FallbackExecutor:
    """
    A class for creating a fallback mechanism in execution flows.
    
    This implementation allows setting up multiple functions as potential handlers
    for a given task. If the primary function fails due to an error, one or more
    fallback functions are tried until a successful execution is achieved or all
    options are exhausted.

    :param primary_function: The main function to be executed.
    :type primary_function: Callable
    :param fallback_functions: A list of fallback functions.
    :type fallback_functions: List[Callable]
    """

    def __init__(self, primary_function: Callable, *fallback_functions: Callable):
        self.functions = [primary_function] + list(fallback_functions)

    def execute(self, *args, **kwargs) -> Any:
        """
        Attempts to execute the primary function and then falls back
        to subsequent functions if an error occurs.

        :param args: Positional arguments for the functions.
        :param kwargs: Keyword arguments for the functions.
        :return: The result of the successfully executed function or None.
        """
        for func in self.functions:
            try:
                return func(*args, **kwargs)
            except Exception as e:
                print(f"Error occurred with {func.__name__}: {e}")
        return None

# Example usage
def primary_task(x: int) -> str:
    """Primary task to convert integer to string."""
    if x < 0:
        raise ValueError("x must be a positive number")
    return f"The square of {x} is {x ** 2}"

def fallback_1(x: int) -> str:
    """Fallback function 1, simpler conversion without validation."""
    return f"Square root of {abs(x)}"

def fallback_2(x: int) -> str:
    """Fallback function 2, returns a generic message."""
    return "Operation could not be completed."

# Creating an instance of FallbackExecutor
executor = FallbackExecutor(primary_task, fallback_1, fallback_2)

# Example calls to the executor with different inputs
print(executor.execute(4))   # Should work normally
print(executor.execute(-3))  # Should use a fallback function
```
```