<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
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<USER_TASK:>
Description:
 def set_password(self, admin, new_password, old_password):
 """Set an admin's password. :param admin: Name of admin whose password is to be set. :type admin: str :param new_password: New password for admin. :type new_password: str :param old_password: Current password of admin. :type old_password: str :returns: A dictionary mapping "name" to admin. :rtype: ResponseDict """

        return self.set_admin(admin, password=new_password,
                              old_password=old_password)