A logical to control if metadata are inserted in the ExperimentHub
db. By default this option is FALSE which is a useful state in which
to test a new recipe and confirm the metadata fields are correct.
When insert = TRUE, the "EXPERIMENT_HUB_SERVER_POST_URL" global
option must be set to the http location of the ExperimentHubServer in the
global environment or .Rprofile. This option controls Additionally, AWS
command line tools must be installed on the local machine to push files to
S3 buckets. See https://aws.amazon.com/cli/ for installation instructions.
...
Arguments passed to pushResources and pushMetadata. See
the man pages for a description of arguments.
providing 
.