code: def _flag_dims_for_search(proto_flag_vals):
      names, dims, initial_x = flag_dims(proto_flag_vals)
      if not names:
          raise MissingSearchDimension(proto_flag_vals)
      return names, dims, initial_x
  
imports: import logging
  import os
  import typing
  import warnings
  from guild import _skopt
  from guild import batch_util
  from guild import flag_util
  from guild import op_util
  from guild import query
label_desc: Use image node_id 17 for calling a global function with example usage: _flag_dims_for_search(proto_flag_vals) and returns: names,  dims,  initial_x