# Visibility Each object has a flag which indicates whether it is a hidden object or not. A UI consuming the API may choose to then display or hide the hidden objects. The primary purpose of this flag is to mark objects that should be considered as hidden internal data objects that help implement a larger data type. Because hidden objects are meant to represent internal objects, a UI consuming the API may choose to prompt the user as to whether linked hidden objects should always be cloned or removed from the project when the object containing the links is cloned or removed. Because the visibility of the object is tied to its type or its role in satisfying another object's type, this flag can only be set on an object while it is still open. By default, all newly created objects are not hidden. ## API method: `/class-xxxx/setVisibility` ### Specification Sets the visibility of the object. ### Inputs * `hidden` **boolean** (required) Whether the object is to be hidden or not. ### Outputs * `id` **string** ID of the manipulated object. ### Errors * ResourceNotFound (the specified object in the URL does not exist) * InvalidInput (the input is not a hash, `hidden` is not present or is not a boolean) * PermissionDenied (UPLOAD access required for the project in which the object was created) * InvalidState (the object is not in the "open" state) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://documentation.dnanexus.com/developer/api/data-object-lifecycle/visibility.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.