"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 21:43:00.625220
"""

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


class FallbackExecutor:
    """
    A class that provides a mechanism for executing functions with fallbacks in case of errors.
    """

    def __init__(self, primary_function: Callable[..., Any], fallback_functions: list[Callable[[str], Any]]):
        """
        Initialize the FallbackExecutor.

        :param primary_function: The main function to be executed first.
        :param fallback_functions: A list of functions that can be used as fallbacks in case the primary function fails.
        """
        self.primary_function = primary_function
        self.fallback_functions = fallback_functions

    def execute(self) -> Any:
        """
        Execute the primary function. If an error occurs, attempt to use a fallback function.

        :return: The result of the executed function or None if all fallbacks fail.
        """
        try:
            return self.primary_function()
        except Exception as e:
            for fallback in self.fallback_functions:
                try:
                    return fallback(str(e))
                except Exception:
                    continue
        return None

# Example usage:

def primary_division(a: int, b: int) -> float:
    """
    Divide two numbers.
    :param a: Dividend
    :param b: Divisor
    :return: Quotient
    """
    return a / b

def fallback_rounding_error(e: str) -> float:
    """
    Fallback for rounding errors during division.
    :param e: Exception message
    :return: A default value or calculated value based on the error.
    """
    try:
        # Simulating a fallback by dividing 10.0 by the divisor, assuming the error was due to rounding
        return 10.0 / int(e.split()[2])
    except (IndexError, ValueError):
        return 0.0

def main():
    primary_fn = primary_division
    fallbacks = [fallback_rounding_error]

    executor = FallbackExecutor(primary_fn, fallbacks)
    print(executor.execute(a=10, b=3))  # Normal execution
    print(executor.execute(a=10, b='a'))  # Error and fallback

if __name__ == "__main__":
    main()
```

This code snippet provides a `FallbackExecutor` class that can handle errors in the primary function by attempting to use one of several fallback functions. The example usage demonstrates dividing two numbers with a primary function and a fallback for handling non-integer divisor errors.