@staticmethod
def _uniquefy_tuples(tuples):
    """Remove redundant tuples.

        :param tuples: list of string of tuples.
        :return: list of string of unique tuples.
        """
    unique_tuples = []
    for tupl in tuples:
        if tupl not in unique_tuples and tupl[0].upper() != 'MEASURES':
            unique_tuples.append(tupl)
    return unique_tuples
