code: def _get_instr(ops, idx=0, argpos=0):
      # returns tuple (instruction, op)
      instr, args = ops[idx][0], ops[idx][1]
      return instr, args[argpos] if args else None
  
imports: from h2o.utils.compatibility import *
  import dis
  import inspect
  import sys
  from .None import h2o
  from .expr import ExprNode, ASTId
label_desc: Use image node_id 30 for calling a global function with example usage: _get_instr(ops, idx, argpos) and returns: instr,  unknown