"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 21:30:57.973729
"""

```python
from typing import Callable, Any, Optional

class FallbackExecutor:
    """
    A class to manage a primary execution function with fallbacks in case of errors.
    
    Attributes:
        primary_executor (Callable): The main function to execute.
        fallback_executors (list): A list of functions that can be used as fallbacks if the primary executor fails.
        
    Methods:
        run: Execute the primary function or one of its fallbacks if an error occurs.
    """
    
    def __init__(self, primary_executor: Callable, fallback_executors: Optional[list] = None):
        self.primary_executor = primary_executor
        self.fallback_executors = fallback_executors if fallback_executors else []
        
    def run(self, *args, **kwargs) -> Any:
        """
        Execute the primary function or a fallback in case of an error.
        
        Args:
            *args: Arguments to pass to the executor functions.
            **kwargs: Keyword arguments to pass to the executor functions.
            
        Returns:
            The result of the executed function or None if all attempts failed.
        """
        try:
            return self.primary_executor(*args, **kwargs)
        except Exception as e:
            for fallback in self.fallback_executors:
                try:
                    return fallback(*args, **kwargs)
                except Exception:
                    continue
        return None

# Example usage:

def primary_function(x: int) -> int:
    """
    A simple function that multiplies its argument by 2.
    
    Args:
        x (int): The input integer.
        
    Returns:
        int: The result of multiplying the input by 2.
    """
    return x * 2

def fallback1_function(x: int) -> int:
    """
    A simple function that adds 5 to its argument as a fallback option.
    
    Args:
        x (int): The input integer.
        
    Returns:
        int: The result of adding 5 to the input.
    """
    return x + 5

def fallback2_function(x: int) -> int:
    """
    A simple function that returns the argument as is as a second fallback option.
    
    Args:
        x (int): The input integer.
        
    Returns:
        int: The input integer unchanged.
    """
    return x

# Creating an instance of FallbackExecutor
executor = FallbackExecutor(primary_function, [fallback1_function, fallback2_function])

# Running the executor with a value that would normally cause an error in primary_function (e.g., non-integer)
result = executor.run("a")

print(f"Result: {result}")  # Should use one of the fallbacks
```