|  | @@ -91,8 +91,10 @@ void grpc_subchannel_notify_on_state_change(grpc_subchannel *channel,
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				|  |  |                                              grpc_connectivity_state *state,
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				|  |  |                                              grpc_iomgr_closure *notify);
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				|  |  | +/** express interest in \a channel's activities through \a pollset. */
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				|  |  |  void grpc_subchannel_add_interested_party(grpc_subchannel *channel,
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				|  |  |                                            grpc_pollset *pollset);
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				|  |  | +/** stop following \a channel's activity through \a pollset. */
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				|  |  |  void grpc_subchannel_del_interested_party(grpc_subchannel *channel,
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				|  |  |                                            grpc_pollset *pollset);
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