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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _parse_killer(cls, killer):
 """Parses a killer into a dictionary. Parameters killer: :class:`str` The killer's raw HTML string. Returns ------- :class:`dict`: A dictionary containing the killer's info. """

        # If the killer contains a link, it is a player.
        if "href" in killer:
            killer_dict = {"name": link_content.search(killer).group(1), "player": True}
        else:
            killer_dict = {"name": killer, "player": False}
        # Check if it contains a summon.
        m = death_summon.search(killer)
        if m:
            killer_dict["summon"] = m.group("summon")
        return killer_dict