class Net::IMAP::CopyUIDData

def uid_mapping

Related: each_uid_pair, assigned_uid_for, source_uid_for

untrusted server, check #size before calling this method.
memory than the data used to create it. When handling responses from an
*Warning:* The hash that is created may consume _much_ more

UID.
Returns a hash mapping each source UID to the newly assigned destination

:call-seq: uid_mapping -> hash 
def uid_mapping
  each_uid_pair.to_h
end