code: def initialize_empty_A(num_obs, num_states):
      """
      Initializes an empty observation likelihood array or `A` array using a list of observation-modality dimensions (`num_obs`)
      and hidden state factor dimensions (`num_states`)
      """
  
      A_shape_list = [[no] + num_states for no in num_obs]
      return obj_array_zeros(A_shape_list)
  
imports: import numpy
  import pandas
  import seaborn
  import matplotlib.pyplot
  import warnings
  import itertools
label_desc: Use image node_id 5 for calling a global function with example usage: initialize_empty_A(num_obs, num_states) and returns: obj_array_zeros