Bil.AttributeBIL attributes.
BIL attributes serve the role of constructor for encoding values as special statements. The attribute defines methods for encoding and decoding values as a string as well as a unique attribute name.
val declare :
?package:string ->
encode:('a -> string) ->
decode:(string -> 'a) ->
string ->
'a tdeclare ?package name ~encode ~decode declares a new attribute.
The attribute package, name pair should be unique. If an attribute with the given name is already registered the registration will fail.