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diff --git a/src/include/gnunet_transport_application_service.h b/src/include/gnunet_transport_application_service.h
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+++ b/src/include/gnunet_transport_application_service.h
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+/*
+ This file is part of GNUnet.
+ Copyright (C) 2010-2015, 2018, 2019 GNUnet e.V.
+
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @file
+ * Bandwidth allocation API for applications to interact with
+ *
+ * @author Christian Grothoff
+ * @author Matthias Wachs
+ *
+ * @defgroup TRANSPORT service
+ * Bandwidth allocation
+ *
+ * @{
+ */
+#ifndef GNUNET_TRANSPORT_APPLICATION_SERVICE_H
+#define GNUNET_TRANSPORT_APPLICATION_SERVICE_H
+
+#include "gnunet_constants.h"
+#include "gnunet_util_lib.h"
+
+/**
+ * Handle to the TRANSPORT subsystem for making suggestions about
+ * connections the peer would like to have.
+ */
+struct GNUNET_TRANSPORT_ApplicationHandle;
+
+
+/**
+ * Initialize the TRANSPORT application client handle.
+ *
+ * @param cfg configuration to use
+ * @return ats application handle, NULL on error
+ */
+struct GNUNET_TRANSPORT_ApplicationHandle *
+GNUNET_TRANSPORT_application_init (const struct GNUNET_CONFIGURATION_Handle *cfg);
+
+
+/**
+ * Shutdown TRANSPORT application client.
+ *
+ * @param ch handle to destroy
+ */
+void
+GNUNET_TRANSPORT_application_done (struct GNUNET_TRANSPORT_ApplicationHandle *ch);
+
+
+/**
+ * Handle for suggestion requests.
+ */
+struct GNUNET_TRANSPORT_ApplicationSuggestHandle;
+
+
+/**
+ * An application would like to communicate with a peer.  TRANSPORT should
+ * allocate bandwith using a suitable address for requiremetns @a pk
+ * to transport.
+ *
+ * @param ch handle
+ * @param peer identity of the peer we need an address for
+ * @param pk what kind of application will the application require (can be
+ *         #GNUNET_MQ_PREFERENCE_NONE, we will still try to connect)
+ * @param bw desired bandwith, can be zero (we will still try to connect)
+ * @return suggestion handle, NULL if request is already pending
+ */
+struct GNUNET_TRANSPORT_ApplicationSuggestHandle *
+GNUNET_TRANSPORT_application_suggest (struct GNUNET_TRANSPORT_ApplicationHandle *ch,
+                                      const struct GNUNET_PeerIdentity *peer,
+                                      enum GNUNET_MQ_PreferenceKind pk,
+                                      struct GNUNET_BANDWIDTH_Value32NBO bw);
+
+
+/**
+ * We no longer care about communicating with a peer.
+ *
+ * @param sh handle
+ */
+void
+GNUNET_TRANSPORT_application_suggest_cancel (struct GNUNET_TRANSPORT_ApplicationSuggestHandle *sh);
+
+/** @} */  /* end of group */
+
+#endif
+/* end of file gnunet_ats_application_service.h */