AddDefaultAccountIDMiddleware adds the DefaultAccountID to the stack using the given options.

AddGlacierAPIVersionMiddleware explicitly add handling for the Glacier api version middleware to the operation stack.

AddTreeHashMiddleware adds middleware needed to automatically calculate Glacier's required checksum headers.

DefaultAccountID sets the account ID to "-" if it isn't already set.

GlacierAPIVersion handles automatically setting Glacier's API version header.

Hash contains information about the tree-hash and linear hash of a Glacier payload.

TreeHash provides the middleware that will automatically set the sha256 and tree hash headers if they have not already been set.