@staticmethod
def name_is_center(side, patterns=None):
    """
        Returns whether given side is a valid center side or not
        :param side: str
        :param patterns: list<str>
        :return: bool
        """
    if not patterns:
        patterns = ['C', 'c', 'Center', 'ct', 'center', 'middle', 'm']
    if str(side) in patterns:
        return True
    return False
