def METHOD_NAME(self, row_contents):
    self.sample_list = []
    if self.mb_exists:
        if self.cm_exists:
            self.sample_list = row_contents[4:]
        else:
            self.sample_list = row_contents[3:]
    else:
        if self.cm_exists:
            self.sample_list = row_contents[3:]
        else:
            self.sample_list = row_contents[2:]