Checks that the parameters given are not empty. Ones with prefix symbols
    can be denoted by including the prefix in symbols

def _check_parameters(parameters, symbols):
    """
    Checks that the parameters given are not empty. Ones with prefix symbols
    can be denoted by including the prefix in symbols
    """
    for param in parameters:
        if not param:
            raise ValueError(EMPTY_PARAMETER)
        elif (param[0] in symbols) and (not param[1:]):
            print(param)
            raise ValueError(EMPTY_KEYWORD_PARAMETER)