try:
    from sage_lib.FileManager import FileManager
except ImportError as e:
    import sys
    sys.stderr.write(f"An error occurred while importing FileManager: {str(e)}\n")
    del sys

class ForceFieldManager(FileManager):
    """
    Manages a collection of ForceFieldModel instances.
    This class allows for operations such as training, updating, and applying
    force fields on a collection of models.
    """

    def __init__(self):
        """
        Initialize the ForceFieldManager with an empty list of force field models.
        """
        self.name = None
        self.trainning_data = []
        self.test_data = []
        self.data = []

    def add_trainning_data(self, file_location:str=None):
        """
        """
        return True

    def add_test_data(self, file_location:str=None):
        """
        """
        return True

    def add_data(self, file_location:str=None):
        """
        """
        return True

    def train(self, training_data):
        """
        Train the model using the provided training data.

        :param training_data: Data to be used for training the model.
        """
        # Implement training logic here
        pass

    def predict(self, data):
        """
        Apply the force field model to the given data.

        :param data: The data on which the force field model is to be applied.
        :return: The result of applying the model.
        """
        # Implement the application of the force field here
        pass


