"""Create recovery_planner
Generated by Phi-Octopus Eden
2025-11-08 06:54:49.223639
"""

```python
from typing import Dict, Any, List

class RecoveryPlanner:
    """
    A class for creating a limited error recovery planner.

    This planner attempts to recover from errors by checking if a backup exists,
    and if so, using it to restore the failed state.
    """

    def __init__(self):
        self.state_backup: Dict[str, Any] = {}

    def save_state(self) -> None:
        """
        Save the current state of the system into a backup.

        :return: None
        """
        # Simulating saving the state by adding it to the backup dictionary.
        self.state_backup.clear()
        print("State saved.")

    def restore_state(self, state_data: Dict[str, Any]) -> bool:
        """
        Restore the system state from a given backup data.

        :param state_data: The state data to be restored.
        :return: True if successful; False otherwise.
        """
        # Simulating restoring the state
        self.state_backup.update(state_data)
        print("State restored.")
        return True

    def check_and_recover(self, error_occurred: bool) -> None:
        """
        Check for a backup and recover from an error.

        :param error_occurred: A boolean indicating if an error occurred.
        :return: None
        """
        if error_occurred:
            print("Error detected. Attempting to recover...")
            # Assuming we have a way to get the backup data, which is just for example purposes here.
            if self.state_backup:
                self.restore_state(self.state_backup)
            else:
                print("No backup found. Recovery failed.")
        else:
            print("No error detected.")


def example_usage() -> None:
    """
    Example usage of the RecoveryPlanner class to demonstrate its functionality.
    """
    planner = RecoveryPlanner()
    # Simulating an error and saving the state
    error_occurred = True  # For demonstration purposes, simulate an error
    print("Simulating an error...")
    planner.save_state()

    # Simulate normal operation where no errors occur
    error_occurred = False
    print("\nNormal operation with no error:")
    planner.check_and_recover(error_occurred)

    # Simulate a recovery scenario
    print("\nError occurred and recovering from the backup state:")
    error_occurred = True
    planner.check_and_recover(error_occurred)


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

This code defines a `RecoveryPlanner` class that demonstrates how to manage and recover from errors by using backups. The `save_state` method simulates saving the current state, while `restore_state` attempts to restore it if needed. The `check_and_recover` method checks for an error and tries to recover using available backups. An example usage function is also provided to illustrate how these methods can be used in practice.