How to use the pyats.aetest function in pyats

    @aetest.setup
    def verify_prerequisite(self, uut, abstract, steps, timeout):
        '''Learn Ops object and verify the requirements.

           If the requirements are not satisfied, then skip to the next
           testcase.

           Args:
               uut (`obj`): Device object.
               abstract (`obj`): Abstract object.
               steps (`step obj`): aetest step object
               timeout (`timeout obj`): Timeout Object

           Returns:
               None

           Raises:

    @aetest.test
    def restore_configuration(self, uut, method, abstract, steps):
        '''Rollback the configuration

           Can be either done via TFTP or checkpoint feature (If exists for OS)

           Args:
               uut (`obj`): Device object.
               method (`str`): Save method from trigger datafile.
                                Only accpet "local" and "checkpoint"

           Returns:
               None

           Raises:
               pyATS Results
        '''

@aetest.test
def connect(section, device, timeout=200, **kwargs):
    '''
    Clean yaml file schema:
    -----------------------
        devices:
            :
                connect:
    Example:
    --------
        devices:
            N95_1:
                connect:
                  timeout: 60

    Flow:
    -----

    @aetest.test
    def restore_configuration(self, uut, method, abstract, steps):
        '''Rollback the configuration

           Can be either done via TFTP or checkpoint feature (If exists for OS)

           Args:
               uut (`obj`): Device object.
               method (`str`): Save method from trigger datafile.
                                Only accpet "local" and "checkpoint"

           Returns:
               None

           Raises:
               pyATS Results
        '''

    @aetest.subsection
    def a_simple_subsection(self):
        '''A Simple Subsection

        Use this docstring section to describe what is being done in this 
        subsection. 

        Note:
            this subsection is empty and doing just about nothing. probably not
            a good idea to submit to code reviews, sanity/regression.
        '''

        #******************************
        #* Results
        #* 
        #*   if sections are not provided any results directly, the following
        #*   behavior takes place:

self.failed('variable b did not contains the expected value',
                        data = {'b': self.b})
            
    @aetest.cleanup
    def cleanup(self):
        '''cleanup section

        create a cleanup section by defining a method a decorating it with
        @aetest.cleanup decorator. This method should be named 'cleanup' as good
        convention.

        cleanup sections are optional within a testcase, and is always run last.
        '''
        log.info("%s testcase cleanup/teardown" % self.uid)

class common_cleanup(aetest.CommonCleanup):
    '''Common Cleanup Section

    Each script may only have a single common cleanup section. 
    Common cleanup section is always run as the last section in a test script,
    and serves to perform all the "common" cleanups required for your script.

    In addition, common-cleanup section should act as the safety net: in case
    of dramatic testcase failures, common cleanup section should be able to
    cleanup the lingering mess left behind in the testbed/devices under test.

    Define a common cleanup section by subclassing aetest.CommonCleanup class. 
    It's a good convention to name it 'common_cleanup', as this section's
    reporting ID is always 'common_cleanup'.

    Similar to its counterpart, common cleanup may have 1+ subsections. 
    Consider a subsection as a cleanup 'milestone/step'. A subsection is defined

    @aetest.setup
    def verify_prerequisite(self):
        raise NotImplementedError

    @aetest.test
    def verify_initial_state(self):
        raise NotImplementedError

    @aetest.test
    def verify_restart(self, uut, abstract, steps, timeout, repeat_restart=1):
        '''Verify if the shut command shut the feature correctly and
           as expected

           Args:
               uut (`obj`): Device object.
               abstract (`obj`): Abstract object.
               steps (`step obj`): aetest step object

           Returns:
               None

           Raises:
               pyATS Results
        '''
        try: