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The following syntactic bindings are exported by the library
(vicare system type-descriptors).
Name of type descriptors for lists of heterogeneous values. It has the following fields:
item-des*A list of type descriptors describing the types of the items.
Build and return a new instance of <list-type-descr>.
Return #t if obj is an instance of
<list-type-descr>; otherwise return #f.
Accessor for the field of <list-type-descr> instances.
Return the length of the list, a non–negative exact integer.