28                       dut,  argument
44         dut.shell.InvokeTerminal("check_hal_preconditions")
45         shell = dut.shell.check_hal_preconditions
97 def CheckFeaturePrecondition(test_instance, dut, shell=None):  argument
118         if not dut.isFrameworkRunning():
119             if not dut.start():
124             dut.shell.InvokeTerminal("check_feature_precondition")
125             shell = dut.shell.check_feature_precondition
135 def MeetFirstApiLevelPrecondition(test_instance, dut=None):  argument
164     if not dut:
166         dut = test_instance.android_devices[0]
167     device_level = dut.getLaunchApiLevel(strict=False)
178 def CheckSysPropPrecondition(test_instance, dut, shell=None):  argument
204         dut.shell.InvokeTerminal("check_sysprop_precondition")
205         shell = dut.shell.check_sysprop_precondition