class_docstr: Tests sequence handling utilities.
class_docstr_tok: ["Tests","sequence","handling","utilities","."]
code: def test_one_hot_simple(self):
      sequences = np.array(["ACGT", "GATA", "CGCG"])
      sequences = dc.utils.genomics_utils.seq_one_hot_encode(sequences)
      self.assertEqual(sequences.shape, (3, 5, 4, 1))
  
file_path: deepchem/deepchem/utils/test/test_genomics_utils.py
imports: import unittest
  import os
  import numpy
  import deepchem
label_desc: Use image node_id 2 for calling the TestSeq obj's underlying member method code with example usage: obj.test_one_hot_simple() without return types