The main entry point to the BIM.works API. This is usually a short-lived object, but there is no reason to not use it for longer. For better organization, the BIM.works API is namespaced in about a dozen different namespaces. These namespaces are also used in the JS SDK. Each namespaced API is available as a readonly attribute on the BimWorksClient.
This method should be called as soon as you are done using the BimWorksClient