"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 04:09:06.591321
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing a function with fallbacks in case of errors.

    :param func: The main function to be executed.
    :type func: Callable[..., Any]
    :param fallbacks: List of functions that will be tried as fallbacks if the primary function raises an error.
    :type fallbacks: list[Callable[..., Any]]
    """

    def __init__(self, func: Callable[..., Any], fallbacks: list[Callable[..., Any]]):
        self.func = func
        self.fallbacks = fallbacks

    def execute(self, *args: Any, **kwargs: Any) -> Any:
        """
        Execute the main function with given arguments. If an error occurs, try each fallback in order until success.

        :param args: Positional arguments to be passed to the functions.
        :type args: tuple
        :param kwargs: Keyword arguments to be passed to the functions.
        :type kwargs: dict
        :return: The result of the successful function execution or None if all fallbacks fail.
        :rtype: Any
        """
        for func in [self.func] + self.fallbacks:
            try:
                return func(*args, **kwargs)
            except Exception as e:
                print(f"Error occurred during {func.__name__}: {e}")
        return None

# Example usage
def main_function(a: int, b: int) -> int:
    """
    Main function to add two numbers.
    
    :param a: First number.
    :type a: int
    :param b: Second number.
    :type b: int
    :return: Sum of the two numbers.
    :rtype: int
    """
    return a + b

def fallback_function_1(a: int, b: int) -> int:
    """
    Fallback function 1 to add two numbers with some error handling.
    
    :param a: First number.
    :type a: int
    :param b: Second number.
    :type b: int
    :return: Sum of the two numbers or None if an error occurs.
    :rtype: int
    """
    try:
        return a + b
    except Exception as e:
        print(f"Fallback 1 error: {e}")
        return None

def fallback_function_2(a: int, b: int) -> int:
    """
    Fallback function 2 to add two numbers with different logic.
    
    :param a: First number.
    :type a: int
    :param b: Second number.
    :type b: int
    :return: Sum of the two numbers or None if an error occurs.
    :rtype: int
    """
    try:
        return a - b  # Different logic to handle fallback
    except Exception as e:
        print(f"Fallback 2 error: {e}")
        return None

# Create FallbackExecutor instance with main function and two fallbacks
executor = FallbackExecutor(main_function, [fallback_function_1, fallback_function_2])

# Example calls
result = executor.execute(5, 3)
print(result)  # Expected output: 8 if no errors

result = executor.execute("a", "b")
print(result)  # Expected output: -2 (due to different logic in FallbackFunction2) or None
```