@LazyProperty
    def lexer_alias(self):
        return self.lexer.aliases[0]
Given a list of options of the form:
dataset/ETHPy150Open codeinn/vcs/vcs/nodes.py/FileNode.lexer_alias--crossover with--dataset/ETHPy150Open dropbox/emmer/emmer/packets.py/options_list_to_dictionary