documentation for the macro "set_tuple_role_type"

Sets the product role types for the two supplied factor roles.

It is defined in the file sets.m4.

m4 code:

define(`set_tuple_role_type',
`define(`role_typesX$1X$2',cartesian(role_typesX$1,X`'patsubst(role_typesX$2,`
',`
X')))')