Changed timestamp type from 'str' to 'datetime.datetime'. Convert the timestamp to a RFC3339 string representation in the helper function _make_entry_resource.
Changed timestamp type from 'str' to 'datetime.datetime'. Convert the timestamp to a RFC3339 string representation in the helper function _make_entry_resource.

GoogleCloudPlatform/gcloud-python,Fkawala/gcloud-python,googleapis/google-cloud-python,jonparrott/gcloud-python,jonparrott/google-cloud-python,dhermes/google-cloud-python,quom/google-cloud-python,tseaver/google-cloud-python,daspecster/google-cloud-python,daspecster/google-cloud-python,googleapis/google-cloud-python,jonparrott/google-cloud-python,jonparrott/gcloud-python,tseaver/google-cloud-python,quom/google-cloud-python,calpeyser/google-cloud-python,tswast/google-cloud-python,calpeyser/google-cloud-python,tartavull/google-cloud-python,dhermes/gcloud-python,tseaver/gcloud-python,GoogleCloudPlatform/gcloud-python,dhermes/google-cloud-python,tseaver/gcloud-python,tartavull/google-cloud-python,tswast/google-cloud-python,Fkawala/gcloud-python,tseaver/google-cloud-python,tswast/google-cloud-python,dhermes/gcloud-python,dhermes/google-cloud-python