code: def model_inference_strategy_dispatcher(model, **args):
      from nemo.collections.multimodal.models.multimodal_llm.neva.neva_model import (
          MegatronNevaModel,
      )
      from nemo.collections.nlp.models.language_modeling.megatron_gpt_model import (
          MegatronGPTModel,
      )
      from nemo.collections.nlp.models.language_modeling.megatron_gpt_prompt_learning_model import (
          MegatronGPTPromptLearningModel,
      )
      from nemo.collections.nlp.models.language_modeling.megatron_retrieval_model import (
          MegatronRetrievalModel,
      )
      from nemo.collections.nlp.modules.common.retro_inference_strategies import (
          RetroFileQAModelTextGenerationStrategy,
          RetroModelTextGenerationStrategy,
          RetroQAModelTextGenerationStrategy,
      )
  
      if isinstance(model, MegatronNevaModel):
          return NevaModelTextGenerationStrategy(model)
      if isinstance(model, MegatronGPTPromptLearningModel):
          return PromptLearningModelTextGenerationStrategy(
              model, **args
          )
      elif isinstance(model, MegatronGPTModel):
          return GPTModelTextGenerationStrategy(model)
      elif isinstance(model, MegatronRetrievalModel):
          strategy_name = args["strategy"]
          del args["strategy"]
          megatron_lm_compatible = model.model.megatron_lm_compatible
          args["megatron_lm_compatible"] = megatron_lm_compatible
          if strategy_name == "RetroModelTextGenerationStrategy":
              return RetroModelTextGenerationStrategy(model, **args)
          elif strategy_name == "RetroQAModelTextGenerationStrategy":
              return RetroQAModelTextGenerationStrategy(model, **args)
          elif (
              strategy_name == "RetroFileQAModelTextGenerationStrategy"
          ):
              return RetroFileQAModelTextGenerationStrategy(
                  model, **args
              )
          else:
              raise ValueError(
                  f"{strategy_name} is not supported for inference"
              )
      else:
          raise ValueError(f"{model} is not supported for inference")
  
imports: import abc
  import copy
  import os
  import re
  import warnings
  from typing import List, Set, Tuple
  import torch
  from transformers import CLIPImageProcessor
  from nemo.collections.nlp.modules.common.lm_utils import pad_batch
  from nemo.collections.nlp.modules.common.megatron.utils import get_ltor_masks_and_position_ids
label_desc: Use image node_id 1 for calling a global function with example usage: model_inference_strategy_dispatcher(model) and returns: NevaModelTextGenerationStrategy, PromptLearningModelTextGenerationStrategy, GPTModelTextGenerationStrategy, RetroModelTextGenerationStrategy, RetroQAModelTextGenerationStrategy, RetroFileQAModelTextGenerationStrategy