"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 06:15:21.758931
"""

```python
from typing import Callable, Any

class FallbackExecutor:
    """
    A class that provides a fallback mechanism for executing functions.
    
    This is particularly useful when you need to ensure that if a primary function fails,
    it can gracefully recover by executing an alternative or default function.
    """

    def __init__(self, primary_func: Callable[..., Any], backup_funcs: dict[str, Callable[..., Any]]):
        """
        Initialize the FallbackExecutor with the primary function and its backups.

        :param primary_func: The main function to be executed, which should accept any arguments
                             that may be required by it.
        :param backup_funcs: A dictionary mapping failure reasons (as strings) to their corresponding
                             backup functions. These functions must match the signature of the primary func.
        """
        self.primary_func = primary_func
        self.backup_funcs = backup_funcs

    def execute(self, *args, **kwargs) -> Any:
        """
        Execute the primary function with provided arguments.

        If an exception occurs during its execution, attempt to use a backup function based on the error type.
        
        :param args: Arguments to pass to the primary and fallback functions
        :param kwargs: Keyword arguments to pass to the primary and fallback functions

        :return: The result of the executed function or None if all backups fail.

        :raises Exception: If no suitable backup is found for the exception raised.
        """
        try:
            return self.primary_func(*args, **kwargs)
        except Exception as e:
            failure_reason = str(e)
            for reason, backup in self.backup_funcs.items():
                if reason.lower() in failure_reason.lower():  # Fallback on error string
                    return backup(*args, **kwargs)

            raise Exception(f"No suitable fallback found for the error: {e}")

# Example Usage

def primary_function(x: int) -> str:
    """Divide by two and return a message."""
    result = x / 2
    return f"Result is {result}"

def backup_div_by_zero(x: int) -> str:
    """Handle division by zero with a different message."""
    return "Division by zero handled, returning negative value."

# Define the fallbacks as a dictionary where keys are error strings to match against.
fallback_funcs = {
    "division by zero": backup_div_by_zero,
}

executor = FallbackExecutor(primary_function, fallback_funcs)

try:
    print(executor.execute(4))  # This should work
    print(executor.execute(0))  # This will raise a ZeroDivisionError and use the backup function
except Exception as e:
    print(f"An error occurred: {e}")
```