e621 may be omitted (pass undefined) when constructing a module standalone, without the main
E621 client, to keep bundles tree-shakable. Convenience methods on models returned by this
module that call back into other modules via this.e621 will throw in that case.
e621may be omitted (passundefined) when constructing a module standalone, without the main E621 client, to keep bundles tree-shakable. Convenience methods on models returned by this module that call back into other modules viathis.e621will throw in that case.