def _change_name(curr_name: str, context: str) ->str:
    """
    Function to add descriptive tags to Tensor name, after the tensor is modified.
    Currently handles Lorentz Transformation and Config Changes.

    Parameters
    ----------
    curr_name : str
            Current name of the tensor
    context : str
            Context of name change - '__lt', for lorentz_transformation
                                   - '__' + newconfig, for config_change (cc)
    Returns
    -------
    str
        Altered name of the tensor, with appropriate tags

    """
    return curr_name + context if curr_name is not None else None
