code: def parse(self, instrs):
          
          instrs_reil = []
  
          try:
              for instr in instrs:
                  instr_lower = instr.lower()
  
                  # If the instruction to parsed is not in the cache,
                  # parse it and add it to the cache.
                  if instr_lower not in self._cache:
                      self._cache[instr_lower] = instruction.parseString(
                          instr_lower)[0]
  
                  # Retrieve parsed instruction from the cache and clone
                  # it.
                  instrs_reil += [copy.deepcopy(self._cache[instr_lower])]
          except:
              error_msg = "Failed to parse instruction: %s"
  
              logger.error(error_msg, instr, exc_info=True)
  
          return instrs_reil
docs: Parse an IR instruction.