Declare Tag
The declare tag is used to declare identifiers for remote interpreter that might be used.
If messages are to be sent to a remote interpreter then the name of the remote interpreter is specified to the current interpreter using the declare tag.
Declaration is done in the tag body as.
vsr identifier
ex:-
 <declare>
 vsr server,
 vsr mail,
 </declare>
Later messages can be sent to the remote interpreters as
 mail.print(hello there),