code: def make_model(arch_params, patch_size):
      """Returns the model.
  
      Used to select the model.
      """
  
      return RDN(arch_params, patch_size)
  
file_path: image-super-resolution/ISR/models/rdn.py
imports: import tensorflow
  from tensorflow.keras.initializers import RandomUniform
  from tensorflow.keras.layers import concatenate, Input, Activation, Add, Conv2D, Lambda, UpSampling2D
  from tensorflow.keras.models import Model
  from ISR.models.imagemodel import ImageModel
label_desc: Use image node_id 1 for calling a global function with example usage: make_model(arch_params, patch_size) and returns: RDN