def METHOD_NAME(self, one_hot_vectors: np.ndarray) -> str:
    """Convert from one hot representation back to original string
    Parameters
    ----------
    one_hot_vectors: np.ndarray
        An array of one hot encoded features.
    Returns
    -------
    str
        Original string for an one hot encoded array.
    """
    string = ""
    for one_hot in one_hot_vectors:
        try:
            idx = np.argmax(one_hot)
            string += self.charset[idx]
        except IndexError:
            string += ""
    return string