The template library allows you to add predefined objects to a model in a single step, enabling you to add predefined model content, such as new entities or services, directly to a model.
Once you have added library content to a module model, you can generate the corresponding code artifacts in the usual manner. In some cases, this additional model content, or the resulting generated code, will require customization.
Objects added from the library are typically associated with a specific entity. For example, services can be generated in support of an entity, and library content can therefore be customized based on the selected entity.