public void setSdl(String sdl) {
        this.sdl = sdl;
    }
<p>
Contains the output of the SDL that was generated from the introspected types. This is controlled by the
<code>includeModelsSDL</code> parameter of the <code>GetDataSourceIntrospection</code> operation.
</p>

@param sdl
       Contains the output of the SDL that was generated from the introspected types. This is controlled by the
       <code>includeModelsSDL</code> parameter of the <code>GetDataSourceIntrospection</code> operation.
aws-java-sdk-appsync/src/main/java/com/amazonaws/services/appsync/model/DataSourceIntrospectionModel.java