code: def _make_dense_block(num_layers, bn_size, growth_rate, dropout):
      out = nn.HybridSequential()
      for _ in range(num_layers):
          out.add(_make_dense_layer(growth_rate, bn_size, dropout))
      return out
  
file_path: mxnet/python/mxnet/gluon/model_zoo/vision/densenet.py
imports: import os
  from ....device import cpu
  from ...block import HybridBlock
  from ...None import nn
  from ....None import base
  from ....util import use_np, wrap_ctx_to_device_func
label_desc: Use image node_id 1 for calling a global function with example usage: _make_dense_block(num_layers, bn_size, growth_rate, dropout) and returns: out