type: object description: The details to update of the reservation. properties: location_id: description: The ID of the location associated with the reservation. type: string quantity: description: The quantity to reserve. type: number description: description: The reservation's description. type: string metadata: description: An optional set of key-value pairs with additional information. type: object externalDocs: description: Learn about the metadata attribute, and how to delete and update it. url: >- https://docs.medusajs.com/development/entities/overview#metadata-attribute