code: def test_rampup_bs(self, gpt_model, rampup_batch_size):
      assert gpt_model.cfg.rampup_batch_size == rampup_batch_size
  
file_path: NeMo/tests/collections/nlp/test_rampup_batch_size.py
imports: import os
  import pytest
  import torch
  from omegaconf import DictConfig
  from pytorch_lightning import Trainer
  from nemo.collections.nlp.models.language_modeling.megatron_gpt_model import MegatronGPTModel
  from nemo.collections.nlp.parts.nlp_overrides import NLPDDPStrategy
label_desc: Use image node_id 1 for calling the TestRampupBatchSize obj's underlying member method code with example usage: obj.test_rampup_bs(gpt_model, rampup_batch_size) without return types