Creates a single-valued language-tagged map shape with a typed model value and no other constraints.
The literal type for the model
Prototype value for runtime model assembly
A shape with model typed as M
Creates a single-valued language-tagged map shape with optional validation constraints.
Optionalconstraints: LocalConstraintsOptional shape constraints
A shape with model typed as Local
If constraints is not a valid LocalConstraints
Creates a single-valued language-tagged map shape.