def _validate_conn(self, conn):
super(HTTPSConnectionPool, self)._validate_conn(conn)<EOL>if not getattr(conn, '<STR_LIT>', None):  <EOL><INDENT>conn.connect()<EOL><DEDENT>if not conn.is_verified:<EOL><INDENT>warnings.warn((<EOL>'<STR_LIT>'<EOL>'<STR_LIT>'<EOL>'<STR_LIT>'),<EOL>InsecureRequestWarning)<EOL><DEDENT>
Called right before a request is made, after the socket is created.