code: def cast_array_to_dense(array):
      if hasattr(array, "toarray"):
          # If the array was a sparse array we reshape it into
          # a 1 dimensional array
          array = array.toarray()
      return array
  
imports: import unittest
  import numpy
  from numpy.linalg import norm
  from tick.array_test.build import array_test
  from scipy.sparse import csr_matrix
  import itertools
label_desc: Use image node_id 10 for calling the Test obj's underlying member method code with example usage: obj.cast_array_to_dense(array) and returns: array