method ObservableWorkspaceApi.prototype.existsUsernameimport { ObservableWorkspaceApi } from "https://deno.land/x/windmill@v1.28.1/windmill-api/types/ObservableAPI.ts"; existsUsername(inlineObject4: InlineObject4, _options?: Configuration): Observable<boolean>exists username ParametersinlineObject4: InlineObject4optional_options: ConfigurationReturnsObservable<boolean>