code: package org.eclipse.milo.opcua.sdk.client.model.types.objects;
  
  import java.util.concurrent.CompletableFuture;
  
  import org.eclipse.milo.opcua.sdk.client.model.types.variables.PropertyType;
  import org.eclipse.milo.opcua.sdk.core.QualifiedProperty;
  import org.eclipse.milo.opcua.sdk.core.ValueRanks;
  import org.eclipse.milo.opcua.stack.core.UaException;
  import org.eclipse.milo.opcua.stack.core.types.builtin.ExpandedNodeId;
  import org.eclipse.milo.opcua.stack.core.types.builtin.StatusCode;
  
  public interface ShelvedStateMachineType extends FiniteStateMachineType {
      QualifiedProperty<Double> UNSHELVE_TIME = new QualifiedProperty<>(
          "http://opcfoundation.org/UA/",
          "UnshelveTime",
          ExpandedNodeId.parse("nsu=http://opcfoundation.org/UA/;i=290"),
          ValueRanks.Scalar,
          Double.class
      );
  
      /**
       * Get the local value of the UnshelveTime Node.
       * <p>
       * The returned value is the last seen; it is not read live from the server.
       *
       * @return the local value of the UnshelveTime Node.
       * @throws UaException if an error occurs creating or getting the UnshelveTime Node.
       */
      Double getUnshelveTime() throws UaException;
  
      /**
       * Set the local value of the UnshelveTime Node.
       * <p>
       * The value is only updated locally; it is not written to the server.
       *
       * @param unshelveTime the local value to set for the UnshelveTime Node.
       * @throws UaException if an error occurs creating or getting the UnshelveTime Node.
       */
      void setUnshelveTime(Double unshelveTime) throws UaException;
  
      /**
       * Read the value of the UnshelveTime Node from the server and update the local value if the
       * operation succeeds.
       *
       * @return the {@link Double} value read from the server.
       * @throws UaException if a service- or operation-level error occurs.
       */
      Double readUnshelveTime() throws UaException;
  
      /**
       * Write a new value for the UnshelveTime Node to the server and update the local value if
       * the operation succeeds.
       *
       * @param unshelveTime the {@link Double} value to write to the server.
       * @throws UaException if a service- or operation-level error occurs.
       */
      void writeUnshelveTime(Double unshelveTime) throws UaException;
  
      /**
       * An asynchronous implementation of {@link #readUnshelveTime()}.
       *
       * @return a CompletableFuture that completes successfully with the property value or completes
       * exceptionally if an operation- or service-level error occurs.
       */
      CompletableFuture<? extends Double> readUnshelveTimeAsync();
  
      /**
       * An asynchronous implementation of {@link #writeUnshelveTime(Double)}.
       *
       * @return a CompletableFuture that completes successfully with the operation result or
       * completes exceptionally if a service-level error occurs.
       */
      CompletableFuture<StatusCode> writeUnshelveTimeAsync(Double unshelveTime);
  
      /**
       * Get the UnshelveTime {@link PropertyType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the UnshelveTime {@link PropertyType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      PropertyType getUnshelveTimeNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getUnshelveTimeNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * ? extends PropertyType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends PropertyType> getUnshelveTimeNodeAsync();
  
      /**
       * Get the Unshelved {@link StateType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the Unshelved {@link StateType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      StateType getUnshelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getUnshelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * StateType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends StateType> getUnshelvedNodeAsync();
  
      /**
       * Get the TimedShelved {@link StateType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the TimedShelved {@link StateType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      StateType getTimedShelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getTimedShelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * StateType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends StateType> getTimedShelvedNodeAsync();
  
      /**
       * Get the OneShotShelved {@link StateType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the OneShotShelved {@link StateType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      StateType getOneShotShelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getOneShotShelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * StateType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends StateType> getOneShotShelvedNodeAsync();
  
      /**
       * Get the UnshelvedToTimedShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the UnshelvedToTimedShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      TransitionType getUnshelvedToTimedShelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getUnshelvedToTimedShelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * TransitionType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends TransitionType> getUnshelvedToTimedShelvedNodeAsync();
  
      /**
       * Get the UnshelvedToOneShotShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the UnshelvedToOneShotShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      TransitionType getUnshelvedToOneShotShelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getUnshelvedToOneShotShelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * TransitionType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends TransitionType> getUnshelvedToOneShotShelvedNodeAsync();
  
      /**
       * Get the TimedShelvedToUnshelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the TimedShelvedToUnshelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      TransitionType getTimedShelvedToUnshelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getTimedShelvedToUnshelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * TransitionType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends TransitionType> getTimedShelvedToUnshelvedNodeAsync();
  
      /**
       * Get the TimedShelvedToOneShotShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the TimedShelvedToOneShotShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      TransitionType getTimedShelvedToOneShotShelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getTimedShelvedToOneShotShelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * TransitionType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends TransitionType> getTimedShelvedToOneShotShelvedNodeAsync();
  
      /**
       * Get the OneShotShelvedToUnshelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the OneShotShelvedToUnshelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      TransitionType getOneShotShelvedToUnshelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getOneShotShelvedToUnshelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * TransitionType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends TransitionType> getOneShotShelvedToUnshelvedNodeAsync();
  
      /**
       * Get the OneShotShelvedToTimedShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * <p>
       * The Node is created when first accessed and cached for subsequent calls.
       *
       * @return the OneShotShelvedToTimedShelved {@link TransitionType} Node, or {@code null} if it does not exist.
       * @throws UaException if an error occurs creating or getting the Node.
       */
      TransitionType getOneShotShelvedToTimedShelvedNode() throws UaException;
  
      /**
       * Asynchronous implementation of {@link #getOneShotShelvedToTimedShelvedNode()}.
       *
       * @return a CompletableFuture that completes successfully with the
       * TransitionType Node or completes exceptionally if an error occurs
       * creating or getting the Node.
       */
      CompletableFuture<? extends TransitionType> getOneShotShelvedToTimedShelvedNodeAsync();
  }
  