docstr: Test setting the context
docstr_tok: ["Test","setting","the","context"]
code: def test__set_context(self):
      """
      Test setting the context
      """
      context_dict = yb_rcmod._plotting_context()
      yb_rcmod._set_context()
      self.assert_rc_params(context_dict)
  
imports: import pytest
  import numpy
  import matplotlib
  import numpy.testing
  import yellowbrick.style.rcmod
  from tests.base import VisualTestCase
label_desc: Use image node_id 4 for calling the TestPlottingContext obj's underlying member method code with example usage: obj.test__set_context() without return types