For get_acceleration: If acceleration has never been enabled or suspend, the value is NULL. Otherwise, the status is returned (either Enabled or Suspended). For put_acceleration: If acceleration has never been enabled or suspend, the value is NULL.
Details
Transfer acceleration is a AWS feature that enables potentially faster file transfers to and from S3, particularly when making cross-border transfers (such as from a European client location to the us-east-1 S3 region). Acceleration must be enabled before it can be used. Once enabled, accelerate = TRUE can be passed to any aws.s3 function via s3HTTP. get_acceleration returns the acceleration status of a bucket; put_acceleration enables or suspends acceleration.