"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 20:42:48.141383
"""

```python
class FallbackExecutor:
    """
    A class that provides a fallback mechanism for executing functions.
    
    This class attempts to execute a given function. If an exception occurs,
    it will attempt to use a provided fallback function instead or raise the
    original error if no fallback is available.

    :param func: The primary function to be executed.
    :type func: Callable
    :param fallback_func: A function to fall back to in case of errors.
    :type fallback_func: Callable, optional
    """

    def __init__(self, func: Callable, fallback_func: Optional[Callable] = None):
        self.func = func
        self.fallback_func = fallback_func

    def execute(self) -> Any:
        """
        Executes the primary function. If an exception occurs, attempts to use the fallback function.
        
        :return: The result of the executed function or the fallback if applicable.
        :rtype: Any
        """
        try:
            return self.func()
        except Exception as e:
            if self.fallback_func is not None:
                print(f"Error occurred in primary function: {e}. Fallback will be used.")
                return self.fallback_func()
            else:
                raise

# Example usage:

def divide_by_zero() -> float:
    """Divide 10 by zero, which should raise a ZeroDivisionError."""
    return 10 / 0

def safe_divide_by_one() -> float:
    """Fallback function to safely divide by one."""
    print("Executing fallback function.")
    return 10 / 1

# Create an instance of FallbackExecutor
executor = FallbackExecutor(divide_by_zero, safe_divide_by_one)

try:
    # Execute the primary function within the executor
    result = executor.execute()
except Exception as e:
    print(f"An unexpected error occurred: {e}")
else:
    print(f"The result is: {result}")

# Expected output:
# Error occurred in primary function: division by zero. Fallback will be used.
# Executing fallback function.
# The result is: 10.0
```