code: def init_rbm():
      return {
          "possible_ratings": [1, 2, 3, 4, 5],
          "n_visible": 500,
          "n_hidden": 100,
          "epochs": 10,
          "minibatch": 50,
          "keep_prob": 0.8,
          "learning_rate": 0.002,
          "init_stdv": 0.01,
          "sampling_protocol": [30, 50, 80, 90, 100],
          "display_epoch": 20,
      }
  
imports: import pytest
  import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: init_rbm() and returns: dict