kind=defined
names=copy,uid_copy
visibility=public

--- copy(set, mailbox)
--- uid_copy(set, mailbox)

Sends a COPY command to copy the specified message(s) to the end
of the specified destination mailbox. the set parameter is
a number or an array of numbers or a Range object. the number is
a message sequence number (copy) or a unique identifier (uid_copy).

