Make authn sample more uniform with the java one.
Make authn sample more uniform with the java one.

sharbison3/python-docs-samples,hashems/Mobile-Cloud-Development-Projects,marcomaccio/python-docs-samples,marcomaccio/python-docs-samples,canglade/NLP,marcomaccio/python-docs-samples,JavaRabbit/CS496_capstone,BrandonY/python-docs-samples,sharbison3/python-docs-samples,GoogleCloudPlatform/python-docs-samples,hashems/Mobile-Cloud-Development-Projects,sharbison3/python-docs-samples,hashems/Mobile-Cloud-Development-Projects,canglade/NLP,JPO1/python-docs-samples,GoogleCloudPlatform/python-docs-samples,BrandonY/python-docs-samples,hashems/Mobile-Cloud-Development-Projects,marcomaccio/python-docs-samples,GoogleCloudPlatform/python-docs-samples,BrandonY/python-docs-samples,GoogleCloudPlatform/python-docs-samples,canglade/NLP,raybuhr/python-docs-samples,sharbison3/python-docs-samples,BrandonY/python-docs-samples,JavaRabbit/CS496_capstone,raybuhr/python-docs-samples,JPO1/python-docs-samples,canglade/NLP,JavaRabbit/CS496_capstone,JavaRabbit/CS496_capstone