class_docstr: Tests for the ``Wires`` class.
docstr: Tests that a Wires object returns the correct length.
code: def test_length(self, iterable):
      """Tests that a Wires object returns the correct length."""
  
      wires = Wires(iterable)
      assert len(wires) == len(iterable)
  
imports: import pytest
  import numpy
  import pennylane
  from pennylane.wires import Wires, WireError
label_desc: Use image node_id 11 for calling the TestWires obj's underlying member method code with example usage: obj.test_length(iterable) without return types