Fixing async task queue sample
Fixing async task queue sample

Change-Id: I7f4deb12a657f4bc9dbfe2c244c0ebd50e490ce4

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