code: def get_model_provider(
      only_query_model=False,
      only_context_model=False,
      biencoder_shared_query_context_model=False,
  ):
      def model_provider(pre_process=True, post_process=True):
          """Build the model."""
  
          print_rank_0("building Bienoder model ...")
          model = biencoder_model_provider(
              only_query_model=only_query_model,
              only_context_model=only_context_model,
              biencoder_shared_query_context_model=biencoder_shared_query_context_model,
              pre_process=pre_process,
              post_process=post_process,
          )
  
          return model
  
      return model_provider
  
imports: import os
  import torch
  import sys
  from megatron import get_args, print_rank_0, get_tokenizer
  from megatron.core import mpu
  from megatron.checkpointing import fix_query_key_value_ordering
  from megatron.checkpointing import get_checkpoint_tracker_filename
  from megatron.checkpointing import get_checkpoint_name
  from megatron.model.bert_model import bert_position_ids
  from megatron.model.enums import AttnMaskType
  from megatron.model.language_model import get_language_model
  from megatron.model.utils import get_linear_layer
  from megatron.model.utils import init_method_normal
  from megatron.model.utils import scaled_init_method_normal
  from .module import MegatronModule
label_desc: Use image node_id 1 for calling a global function with example usage: get_model_provider(only_query_model, only_context_model, biencoder_shared_query_context_model) and returns: model_provider, model