Label of the existing part to update (e.g., "0:1:1:1"). Obtain this from document queries like getDocumentParts.
OptionalshapeNew shape to replace the existing shape. If undefined, the shape is not changed.
OptionalnameNew name for the part. If undefined, the name is not changed.
OptionalcolorNew color for the part. If undefined, the color is not changed.
DTO for creating a part update definition. Part updates specify changes to apply to existing parts in a document.