message: Necessary API members documented in ChoicesRestfull class
diff: @@ -303,6 +303,16 @@ export class ChoicesRestfull extends Base {
  }
  return res;
  }
  + /**
  + * Gets or sets a link to a web service. You can use text preprocessing here.
  + * For example, the following url: _https://restcountries.eu/rest/v2/region/{region}_ is changed based on the _region_ question's value.
  + * SurveyJS automatically gets data from the web service when the value of the _region_ question changes.
  + * @see path
  + * @see valueName
  + * @see titleName
  + * @see [Example: RESTful Dropdown](https://surveyjs.io/Examples/Library/?id=questiontype-dropdownrestfull)
  + * @see [Docs: Fill Choices from a RESTful Service](https://surveyjs.io/Documentation/Library/?id=LibraryOverview#fill-the-choices-from-a-restful-service)
  + */
  public get url(): string {
  return this.getPropertyValue("url", "");
  }
  @@ -318,18 +328,44 @@ export class ChoicesRestfull extends Base {
  }
  }
  }
  + /**
  + * Use this property, if a web service returns a lot of information and you need only a part of it.
  + * For example, a web service returns a list of countries and a list of capitals.
  + * If you need a list of countries, set a correct path from which SurveyJS obtains the data, like: _DataList1\DataList2_
  + * @see url
  + * @see valueName
  + * @see titleName
  + * @see [Example: RESTful Dropdown](https://surveyjs.io/Examples/Library/?id=questiontype-dropdownrestfull)
  + * @see [Docs: Fill Choices from a RESTful Service](https://surveyjs.io/Documentation/Library/?id=LibraryOverview#fill-the-choices-from-a-restful-service)
  + */
  public get path(): string {
  return this.getPropertyValue("path", "");
  }
  public set path(val: string) {
  this.setPropertyValue("path", val);
  }
  + /**
  + * Gets or sets the name of a property (in the obtained data object) to which SurveyJS binds to provide values for choice items.
  + * @see url
  + * @see path
  + * @see titleName
  + * @see [Example: RESTful Dropdown](https://surveyjs.io/Examples/Library/?id=questiontype-dropdownrestfull)
  + * @see [Docs: Fill Choices from a RESTful Service](https://surveyjs.io/Documentation/Library/?id=LibraryOverview#fill-the-choices-from-a-restful-service)
  + */
  public get valueName(): string {
  return this.getPropertyValue("valueName", "");
  }
  public set valueName(val: string) {
  this.setPropertyValue("valueName", val);
  }
  + /**
  + * Gets or sets the name of a property (in the obtained data object) to which SurveyJS binds to provide display texts for choice items.
  + * @see url
  + * @see path
  + * @see valueeName
  + * @see [Example: RESTful Dropdown](https://surveyjs.io/Examples/Library/?id=questiontype-dropdownrestfull)
  + * @see [Docs: Fill Choices from a RESTful Service](https://surveyjs.io/Documentation/Library/?id=LibraryOverview#fill-the-choices-from-a-restful-service)
  + */
  public get titleName(): string {
  return this.getPropertyValue("titleName", "");
  }
  