content: package ganymede.notebook;
  /*-
   * ##########################################################################
   * Ganymede
   * %%
   * Copyright (C) 2021, 2022 Allen D. Ball
   * %%
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * ##########################################################################
   */
  import ball.annotation.ServiceProviderFor;
  import ball.annotation.processing.AnnotatedProcessor;
  import ball.annotation.processing.For;
  import java.lang.annotation.Documented;
  import java.lang.annotation.Retention;
  import java.lang.annotation.Target;
  import javax.annotation.processing.Processor;
  import lombok.NoArgsConstructor;
  import lombok.ToString;
  
  import static java.lang.annotation.ElementType.METHOD;
  import static java.lang.annotation.RetentionPolicy.RUNTIME;
  
  /**
   * Marker {@link java.lang.annotation.Annotation} indicating a method should
   * be added to the Notebook as a function.
   *
   * @author {@link.uri mailto:ball@hcf.dev Allen D. Ball}
   */
  @Documented
  @Retention(RUNTIME)
  @Target({ METHOD })
  public @interface NotebookFunction {
  
      /**
       * {@link Processor} implementation.
       */
      @ServiceProviderFor({ Processor.class })
      @For({ NotebookFunction.class })
      @NoArgsConstructor @ToString
      public static class ProcessorImpl extends AnnotatedProcessor {
      }
  }
  