code: def ta_tests():
      df = cf.datagen.lines(1, 500)
      studies = ["sma"]
      options = {"periods": [14]}
  
      def ta_tests(self, studies, **kwargs):
          for study in studies:
              self._ta(df, study, **kwargs)
  
      _generate_tests(TestIPlot, ta_tests, "ta", options)
  
imports: import cufflinks
  import pandas
  import numpy
  import unittest
  from nose.tools import assert_equals
label_desc: Use image node_id 13 for calling a global function with example usage: ta_tests() without return types