How to use the synapseclient.activity.Activity function in synapseclient

def test_activity_creation_from_dict():
    """test that activities are created correctly from a dictionary"""
    d = {'name': 'Project Fuzz',
         'description': 'hipster beard dataset',
         'used': [{'reference': {'targetId': 'syn12345', 'versionNumber': 42}, 'wasExecuted': True}]}
    a = Activity(data=d)
    assert_equals(a['name'], 'Project Fuzz')
    assert_equals(a['description'], 'hipster beard dataset')

    usedEntities = a['used']
    assert_equals(len(usedEntities), 1)

    u = usedEntities[0]
    assert_true(u['wasExecuted'])

    assert_equals(u['reference']['targetId'], 'syn12345')
    assert_equals(u['reference']['versionNumber'], 42)

def test_private_getStringList():
    act = Activity()
    url_string = \
        'https://github.com/Sage-Bionetworks/ampAdScripts/blob/master/Broad-Rush/migrateROSMAPGenotypesFeb2015.R'
    act.used([{'wasExecuted': True,
               'concreteType': 'org.sagebionetworks.repo.model.provenance.UsedURL',
               'url': url_string}
              ])
    assert_equals([url_string], act._getStringList())

:returns: An updated :py:class:`synapseclient.activity.Activity` object
        """
        
        # Assert that the entity was generated by a given Activity.
        if 'id' in activity:
            # We're updating provenance
            uri = '/activity/%s' % activity['id']
            activity = Activity(data=self.restPUT(uri, json.dumps(activity)))
        else:
            activity = self.restPOST('/activity', body=json.dumps(activity))

        # assert that an entity is generated by an activity

        #TODO IS THIS REALLY CORRECT?  WHAT HAPPENS IF WE WANT TO REUSE AN ACTIVITY?
        uri = '/entity/%s/generatedBy?generatedBy=%s' % (id_of(entity), activity['id'])
        activity = Activity(data=self.restPUT(uri))

        return activity

:param version: The version of the Entity to retrieve.  
                        Gets the most recent version if omitted
        
        :returns: An Activity object or 
                  raises exception if no provenance record exists
        """

        # Get versionNumber from Entity
        if version is None and 'versionNumber' in entity:
            version = entity['versionNumber']

        if version:
            uri = '/entity/%s/version/%d/generatedBy' % (id_of(entity), version)
        else:
            uri = '/entity/%s/generatedBy' % id_of(entity)
        return Activity(data=self.restGET(uri))

def updateActivity(self, activity):
        """
        Modifies an existing Activity.
        
        :returns: An updated Activity object
        """
        
        uri = '/activity/%s' % activity['id']
        return Activity(data=self.restPUT(uri, json.dumps(activity)))

def setProvenance(self, entity, activity):
        """
        Stores a record of the code and data used to derive a Synapse entity.
        
        :param entity:   An Entity or Synapse ID to modify
        :param activity: a :py:class:`synapseclient.activity.Activity`
        
        :returns: An updated :py:class:`synapseclient.activity.Activity` object
        """
        
        # Assert that the entity was generated by a given Activity.
        if 'id' in activity:
            # We're updating provenance
            uri = '/activity/%s' % activity['id']
            activity = Activity(data=self.restPUT(uri, json.dumps(activity)))
        else:
            activity = self.restPOST('/activity', body=json.dumps(activity))

        # assert that an entity is generated by an activity

        #TODO IS THIS REALLY CORRECT?  WHAT HAPPENS IF WE WANT TO REUSE AN ACTIVITY?
        uri = '/entity/%s/generatedBy?generatedBy=%s' % (id_of(entity), activity['id'])
        activity = Activity(data=self.restPUT(uri))

        return activity

annotations['etag'] = properties['etag']
        annotations = self.setAnnotations(properties, annotations)
        properties['etag'] = annotations['etag']

        # If the parameters 'used' or 'executed' are given, create an Activity object
        activity = kwargs.get('activity', None)
        used = kwargs.get('used', None)
        executed = kwargs.get('executed', None)
        
        if used or executed:
            if activity is not None:
                ## TODO: move this argument check closer to the front of the method
                raise SynapseProvenanceError('Provenance can be specified as an Activity object or as used/executed item(s), but not both.')
            activityName = kwargs.get('activityName', None)
            activityDescription = kwargs.get('activityDescription', None)
            activity = Activity(name=activityName, description=activityDescription, used=used, executed=executed)

        # If we have an Activity, set it as the Entity's provenance record
        if activity:
            activity = self.setProvenance(properties, activity)
            
            # 'etag' has changed, so get the new Entity
            properties = self._getEntity(properties)

        # Return the updated Entity object
        return Entity.create(properties, annotations, local_state)