@CodeTemplate("path/to/template") public class MyTemplate { @Property("class_name") private String className; @Property("fields") private List<String> fields; } groovy dependencies { // ... implementation 'org.activej:codegen:1.0' annotationProcessor 'org.activej:codegen:1.0' // ... } @CodeTemplate("path/to/template") public class MyTemplate { @Property("class_name") private String className; @Property("fields") private List<String> fields; } path/to/template=path/to/your/template.txt