def METHOD_NAME(self, lines):
    if len(lines) == 0:
        return
    text = []
    for line in lines:
        line = line.strip()
        if len(line) == 0:
            break
        else:
            text.append(line)
    text = ' '.join(text)
    sep_idx = text.find(':') + 1
    if text.startswith(('Fixed Bug', 'Bug Fix')):
        self._fixes.append(text[sep_idx:])
    elif text.startswith(('Feature', 'Task')):
        self._features.append(text[sep_idx:])