code: def plot_data():
      plt.plot(Xnew, Fnew, label="f(x)")
      plt.plot(X, Y, ".", label="observations")
  
imports: import numpy
  import tensorflow
  from check_shapes import Shape
  import gpflow
  from gpflow import covariances
  from gpflow import kullback_leiblers
  from gpflow.base import TensorLike
  from gpflow.ci_utils import reduce_in_tests
  from gpflow.inducing_variables import InducingVariables
  from gpflow.utilities import to_default_float
  import matplotlib.pyplot
  import gpflow.posteriors
label_desc: Use image node_id 10 for calling a global function with example usage: plot_data() without return types