Lang.TypeDeclmodule Field : sig ... endmodule Constructor : sig ... endmodule Representation : sig ... endmodule Equation : sig ... endtype t = {id : Paths.Identifier.Type.t; | 
doc : Comment.docs; | 
canonical : Paths.Path.Type.t option; | 
equation : Equation.t; | 
representation : Representation.t option; | 
}