code: public UpdateDevEndpointRequest withAddPublicKeys(String... addPublicKeys) {
          if (this.addPublicKeys == null) {
              setAddPublicKeys(new java.util.ArrayList<String>(addPublicKeys.length));
          }
          for (String ele : addPublicKeys) {
              this.addPublicKeys.add(ele);
          }
          return this;
      }
docs: <p>
  The list of public keys for the DevEndpoint to use.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setAddPublicKeys(java.util.Collection)} or {@link #withAddPublicKeys(java.util.Collection)} if you want
  to override the existing values.
  </p>
  
  @param addPublicKeys
  The list of public keys for the DevEndpoint to use.
  @return Returns a reference to this object so that method calls can be chained together.