def __get_ll_type__(ll_type):
res = [llt for llt in __LL_TYPES__<EOL>if llt[<NUM_LIT:1>] == ll_type]<EOL>assert len(res) < <NUM_LIT:2>, '<STR_LIT>'<EOL>if res:<EOL><INDENT>return res[<NUM_LIT:0>]<EOL><DEDENT>else:<EOL><INDENT>return None<EOL><DEDENT>
Given an lltype value, retrieve its definition.