code: def test_laplace_predict_length():
      """
      Tests that the prediction dataframe length is equal to the number of steps h
      """
      model = pf.GASLLT(data=data, family=pf.GASLaplace())
      x = model.fit()
      x.summary()
      assert model.predict(h=5).shape[0] == 5
  
imports: import numpy
  import pyflux
label_desc: Use image node_id 35 for calling a global function with example usage: test_laplace_predict_length() without return types