partial void Modify_ListCatalogsRequest(ref ListCatalogsRequest request, ref gaxgrpc::CallSettings settings);
 /// <summary>
 /// Lists all the [Catalog][google.cloud.retail.v2.Catalog]s associated with
 /// the project.
 /// </summary>
 /// <param name="request">The request object containing all of the parameters for the API call.</param>
 /// <param name="callSettings">If not null, applies overrides to this RPC call.</param>
 /// <returns>A pageable asynchronous sequence of <see cref="Catalog"/> resources.</returns>
 public override gax::PagedAsyncEnumerable <ListCatalogsResponse, Catalog> ListCatalogsAsync(ListCatalogsRequest request, gaxgrpc::CallSettings callSettings = null)
 {
     Modify_ListCatalogsRequest(ref request, ref callSettings);
     return(new gaxgrpc::GrpcPagedAsyncEnumerable <ListCatalogsRequest, ListCatalogsResponse, Catalog>(_callListCatalogs, request, callSettings));
 }
 /// <summary>
 /// Lists all the [Catalog][google.cloud.retail.v2.Catalog]s associated with
 /// the project.
 /// </summary>
 /// <param name="request">The request object containing all of the parameters for the API call.</param>
 /// <param name="callSettings">If not null, applies overrides to this RPC call.</param>
 /// <returns>A pageable asynchronous sequence of <see cref="Catalog"/> resources.</returns>
 public virtual gax::PagedAsyncEnumerable <ListCatalogsResponse, Catalog> ListCatalogsAsync(ListCatalogsRequest request, gaxgrpc::CallSettings callSettings = null) =>
 throw new sys::NotImplementedException();