anchor.diff:  %% @spec remove_bindings(X, Bs, State) -> Result
   %% @where
   %%       X      = rabbit_types:exchange()
  -%%       Bs     =
  +%%       Bs     = list90
   %%       State  = #pgsql_listen_state
   %%       Result = {ok, #pgsql_listen_state}
  -%% @doc Remove one or more bindings from the exchange
  +%% @doc Remove a list of from the exchange
   %% @end
   %%
   remove_bindings(_, [], State) ->
  
positive.code:     {error, Error} -> {error, Error}
    end.
  
  remove_binding(X=#exchange{name=Name},
                 #binding{key=Key, source={resource, VHost, exchange, _}},
                 State=#pgsql_listen_state{amqp=AMQP,
  
negative.code:     {error, Error} -> {error, Error}
    end.
  
  %% @private
  %% @spec remove_channel_binding_reference(Channel, X, Channels) -> {ok, dict()}
  %% @where
  