class_docstr: Test various keywords arguments that can be passed to modify graphic.
class_docstr_tok: ["Test","various","keywords","arguments","that","can","be","passed","to","modify","graphic","."]
docstr: Test label options modifies label style.
docstr_tok: ["Test","label","options","modifies","label","style","."]
code: def test_label_options(self):
      """Test label options modifies label style."""
  
      _, ax = qml.draw_mpl(
          circuit1, label_options={"color": "purple", "fontsize": 20}
      )(1.23, 2.34)
  
      for l in ax.texts[:3]:  # three labels
          assert l.get_color() == "purple"
          assert l.get_fontsize() == 20
      plt.close()
  
imports: import pytest
  import pennylane
label_desc: Use image node_id 3 for calling the TestKwargs obj's underlying member method code with example usage: obj.test_label_options() without return types