"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 21:52:45.986113
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class that provides a fallback mechanism for executing functions in case of an error.
    
    Attributes:
        primary_executor (Callable): The main function to execute.
        fallback_executor (Callable): The secondary function to be executed if the primary one fails.

    Methods:
        run: Executes the primary function. If it raises an exception, tries the fallback executor.
    """
    
    def __init__(self, primary_executor: Callable, fallback_executor: Callable):
        self.primary_executor = primary_executor
        self.fallback_executor = fallback_executor
    
    def run(self) -> Any:
        """
        Execute the primary function and catch any exceptions. If an exception occurs,
        attempt to execute the fallback function.

        Returns:
            The result of the executed function, or None if both functions fail.
        """
        try:
            return self.primary_executor()
        except Exception as e:
            print(f"Primary execution failed: {e}")
        
        try:
            return self.fallback_executor()
        except Exception as e:
            print(f"Fallback execution failed: {e}")
            return None


# Example usage
def primary_divide(a, b):
    """
    Divides two numbers.
    
    Args:
        a (int): The numerator.
        b (int): The denominator.

    Returns:
        float: The result of the division.
    """
    return a / b

def fallback_add(a, b):
    """
    Adds two numbers as an alternative to division if it fails.
    
    Args:
        a (int): First number.
        b (int): Second number.

    Returns:
        int: The sum of the two numbers.
    """
    return a + b


# Creating instances
executor = FallbackExecutor(primary_divide, fallback_add)

# Using the executor with different inputs
result1 = executor.run(8, 2)  # Should result in 4.0
print(f"Result: {result1}")

result2 = executor.run(8, 0)  # Division by zero error, should fall back to addition (8 + 0)
print(f"Result: {result2}")

result3 = executor.run("a", "b")  # TypeError from primary function, fallback_add should be called
print(f"Result: {result3}")
```