+/// Get the maximum segment size of a channel.
+/** This returns the amount of bytes that can be sent at once for channels with UDP semantics.
+ *
+ * \memberof meshlink_channel
+ * @param mesh A handle which represents an instance of MeshLink.
+ * @param channel A handle for the channel.
+ *
+ * @return The amount of bytes in the receive buffer.
+ */
+extern size_t meshlink_channel_get_mss(struct meshlink_handle *mesh, struct meshlink_channel *channel) __attribute__((__warn_unused_result__));
+