Gab has a small, fixed set of built-in types. This section is a reference for each one — its behaviour, its messages, and the details that matter when writing real code.

Type	Description
gab\number	IEEE 754 64-bit float
gab\string	UTF-8 encoded byte sequence
gab\binary	Raw, unencoded byte sequence
gab\message	A self-typed atom value
gab\block	A closure / lambda
gab\record	The only data structure — serves as both list and dictionary
gab\shape	Describes the keys of a record; the record’s type
gab\fiber	A lightweight concurrent thread
gab\channel	A synchronised conduit between fibers
gab\box	An opaque wrapper around a native C value

For a conceptual introduction to these types, see the Language Tour.