code: def test_Sortable(self) -> None:
      arm1 = Arm(parameters={"y": 0.25, "x": 0.75, "z": 75})
      arm2 = Arm(parameters={"z": 0, "x": 0, "y": 0})
      self.assertTrue(arm1 < arm2)
  
file_path: Ax/ax/core/tests/test_arm.py
imports: from ax.core.arm import Arm
  from ax.utils.common.testutils import TestCase
label_desc: Use image node_id 7 for calling the ArmTest obj's underlying member method code with example usage: obj.test_Sortable() without return types