class_docstr: Test the decimals keyword argument.
docstr: Test displays string valued parameters.
docstr_tok: ["Test","displays","string","valued","parameters","."]
code: def test_string_decimals(self):
      """Test displays string valued parameters."""
  
      expected = "    0: ──RX(x)─┤  <Z>\n    a: ──RY(y)─┤     \n1.234: ──RZ(z)─┤     "
      assert draw(circuit)("x", "y", "z") == expected
  
imports: from functools import partial
  import pytest
  import pennylane
  from pennylane import numpy
  from pennylane.drawer import draw
label_desc: Use image node_id 10 for calling the TestDecimals obj's underlying member method code with example usage: obj.test_string_decimals() without return types