ari/bridge: Add mute, dtmf suppression controls
Add bridge_features structure to bridge creation. Specifically, this implements mute and DTMF suppression, but others should be able to be easily added to the same structure. ASTERISK-27322 #close Reported by: Darren Sessions Sponsored by: AVOXI Change-Id: Id4002adfb65c9a8027ee9e1a5f477e0f01cf9d61
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@ -792,6 +792,38 @@ int stasis_app_control_add_channel_to_bridge(
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int stasis_app_control_remove_channel_from_bridge(
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struct stasis_app_control *control, struct ast_bridge *bridge);
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/*!
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* \brief Initialize bridge features into a channel control
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*
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* \note Bridge features on a control are destroyed after each bridge session,
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* so new features need to be initialized before each bridge add.
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*
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* \param control Control in which to store the features
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*
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* \return non-zero on failure
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* \return zero on success
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*/
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int stasis_app_control_bridge_features_init(
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struct stasis_app_control *control);
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/*!
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* \brief Set whether DTMF from the channel is absorbed instead of passing through to the bridge
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*
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* \param control Control whose channel should have its DTMF absorbed when bridged
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* \param absorb Whether DTMF should be absorbed (1) instead of passed through (0).
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*/
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void stasis_app_control_absorb_dtmf_in_bridge(
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struct stasis_app_control *control, int absorb);
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/*!
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* \brief Set whether audio from the channel is muted instead of passing through to the bridge
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*
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* \param control Control whose channel should have its audio muted when bridged
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* \param mute Whether audio should be muted (1) instead of passed through (0).
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*/
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void stasis_app_control_mute_in_bridge(
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struct stasis_app_control *control, int mute);
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/*!
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* \since 12
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* \brief Gets the bridge currently associated with a control object.
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@ -218,6 +218,12 @@ void ast_ari_bridges_add_channel(struct ast_variable *headers,
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return;
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}
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}
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/* Apply bridge features to each of the channel controls */
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if (!stasis_app_control_bridge_features_init(list->controls[i])) {
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stasis_app_control_absorb_dtmf_in_bridge(list->controls[i], args->absorb_dtmf);
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stasis_app_control_mute_in_bridge(list->controls[i], args->mute);
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}
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}
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for (i = 0; i < list->count; ++i) {
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@ -150,6 +150,10 @@ struct ast_ari_bridges_add_channel_args {
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char *channel_parse;
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/*! Channel's role in the bridge */
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const char *role;
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/*! Absorb DTMF coming from this channel, preventing it to pass through to the bridge */
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int absorb_dtmf;
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/*! Mute audio from this channel, preventing it to pass through to the bridge */
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int mute;
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};
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/*!
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* \brief Body parsing function for /bridges/{bridgeId}/addChannel.
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@ -430,6 +430,14 @@ int ast_ari_bridges_add_channel_parse_body(
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if (field) {
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args->role = ast_json_string_get(field);
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}
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field = ast_json_object_get(body, "absorbDTMF");
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if (field) {
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args->absorb_dtmf = ast_json_is_true(field);
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}
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field = ast_json_object_get(body, "mute");
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if (field) {
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args->mute = ast_json_is_true(field);
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}
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return 0;
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}
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@ -499,6 +507,12 @@ static void ast_ari_bridges_add_channel_cb(
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if (strcmp(i->name, "role") == 0) {
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args.role = (i->value);
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} else
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if (strcmp(i->name, "absorbDTMF") == 0) {
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args.absorb_dtmf = ast_true(i->value);
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} else
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if (strcmp(i->name, "mute") == 0) {
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args.mute = ast_true(i->value);
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} else
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{}
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}
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for (i = path_vars; i; i = i->next) {
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@ -35,6 +35,7 @@
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#include "asterisk/bridge.h"
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#include "asterisk/bridge_after.h"
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#include "asterisk/bridge_basic.h"
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#include "asterisk/bridge_features.h"
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#include "asterisk/frame.h"
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#include "asterisk/pbx.h"
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#include "asterisk/musiconhold.h"
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@ -61,6 +62,10 @@ struct stasis_app_control {
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* When a channel is in a bridge, the bridge that it is in.
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*/
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struct ast_bridge *bridge;
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/*!
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* Bridge features which should be applied to the channel when it enters the next bridge. These only apply to the next bridge and will be emptied thereafter.
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*/
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struct ast_bridge_features *bridge_features;
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/*!
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* Holding place for channel's PBX while imparted to a bridge.
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*/
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@ -99,6 +104,8 @@ static void control_dtor(void *obj)
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ast_cond_destroy(&control->wait_cond);
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AST_LIST_HEAD_DESTROY(&control->add_rules);
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AST_LIST_HEAD_DESTROY(&control->remove_rules);
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ast_bridge_features_destroy(control->bridge_features);
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}
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struct stasis_app_control *control_create(struct ast_channel *channel, struct stasis_app *app)
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@ -1161,6 +1168,7 @@ static void set_interval_hook(struct ast_channel *chan)
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int control_swap_channel_in_bridge(struct stasis_app_control *control, struct ast_bridge *bridge, struct ast_channel *chan, struct ast_channel *swap)
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{
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int res;
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struct ast_bridge_features *features;
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if (!control || !bridge) {
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return -1;
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@ -1205,6 +1213,10 @@ int control_swap_channel_in_bridge(struct stasis_app_control *control, struct as
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ast_channel_pbx_set(chan, NULL);
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}
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/* Pull bridge features from the control */
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features = control->bridge_features;
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control->bridge_features = NULL;
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ast_assert(stasis_app_get_bridge(control) == NULL);
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/* We need to set control->bridge here since bridge_after_cb may be run
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* before ast_bridge_impart returns. bridge_after_cb gets a reason
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@ -1220,7 +1232,7 @@ int control_swap_channel_in_bridge(struct stasis_app_control *control, struct as
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res = ast_bridge_impart(bridge,
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chan,
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swap,
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NULL, /* features */
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features, /* features */
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AST_BRIDGE_IMPART_CHAN_DEPARTABLE);
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if (res != 0) {
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/* ast_bridge_impart failed before it could spawn the depart
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@ -1316,6 +1328,31 @@ int stasis_app_control_queue_control(struct stasis_app_control *control,
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return ast_queue_control(control->channel, frame_type);
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}
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int stasis_app_control_bridge_features_init(
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struct stasis_app_control *control)
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{
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struct ast_bridge_features *features;
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features = ast_bridge_features_new();
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if (!features) {
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return 1;
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}
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control->bridge_features = features;
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return 0;
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}
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void stasis_app_control_absorb_dtmf_in_bridge(
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struct stasis_app_control *control, int absorb)
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{
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control->bridge_features->dtmf_passthrough = !absorb;
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}
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void stasis_app_control_mute_in_bridge(
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struct stasis_app_control *control, int mute)
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{
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control->bridge_features->mute = mute;
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}
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void control_flush_queue(struct stasis_app_control *control)
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{
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struct ao2_iterator iter;
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@ -169,6 +169,24 @@
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"required": false,
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"allowMultiple": false,
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"dataType": "string"
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},
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{
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"name": "absorbDTMF",
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"description": "Absorb DTMF coming from this channel, preventing it to pass through to the bridge",
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"paramType": "query",
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"required": false,
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"allowMultiple": false,
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"dataType": "boolean",
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"defaultValue": false
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},
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{
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"name": "mute",
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"description": "Mute audio from this channel, preventing it to pass through to the bridge",
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"paramType": "query",
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"required": false,
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"allowMultiple": false,
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"dataType": "boolean",
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"defaultValue": false
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}
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],
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"errorResponses": [
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