manatee: Add bluetooth reset handling
This commit is contained in:
Alexander Heldt
@@ -6,6 +6,60 @@
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}:
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let
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nginxEnabled = config.mod.nginx.enable;
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script = pkgs.writeShellScript "bt-reset" ''
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set -euo pipefail
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export PATH="${
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lib.makeBinPath [
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pkgs.bluez
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pkgs.util-linux
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pkgs.kmod
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pkgs.gnugrep
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pkgs.coreutils
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]
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}"
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logger -t bt-reset "Starting Bluetooth adapter reset..."
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# Exit early if the adapter is already present and running
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if hciconfig hci0 2>/dev/null | grep -q "UP RUNNING"; then
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logger -t bt-reset "hci0 is already UP RUNNING — nothing to do"
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exit 0
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fi
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# If hci0 exists but isn't UP, try bringing it up
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if hciconfig hci0 2>/dev/null; then
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logger -t bt-reset "hci0 exists but not running — bringing it up"
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hciconfig hci0 up || true
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sleep 2
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if hciconfig hci0 2>/dev/null | grep -q "UP RUNNING"; then
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logger -t bt-reset "hci0 is UP now"
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systemctl restart bluetooth.service
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logger -t bt-reset "bluetooth.service restarted — done"
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exit 0
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fi
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fi
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# Hard reset: reload the btusb kernel module (works for USB adapters)
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logger -t bt-reset "hci0 missing — reloading btusb module..."
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modprobe -r btusb 2>/dev/null || true
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sleep 3
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modprobe btusb
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sleep 3
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if hciconfig hci0 2>/dev/null; then
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hciconfig hci0 up
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logger -t bt-reset "hci0 restored after module reload"
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else
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logger -t bt-reset "ERROR: hci0 not found after module reload"
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exit 1
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fi
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# Restart the bluetooth systemd service so bluetoothd picks up the adapter
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systemctl restart bluetooth.service
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logger -t bt-reset "bluetooth.service restarted — done"
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'';
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in
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{
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hardware.bluetooth.enable = true;
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@@ -57,71 +111,111 @@ in
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};
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};
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};
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# Trigger reset via udev when hci0 disappears
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udev.extraRules = ''
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ACTION=="remove", SUBSYSTEM=="bluetooth", KERNEL=="hci0", \
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TAG+="systemd", ENV{SYSTEMD_WANTS}+="bt-reset.service"
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'';
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};
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systemd.user = {
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timers = {
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"update-hetzner-ha-dns" = {
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unitConfig = {
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Description = "updates Hetzner DNS for home-assistant";
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};
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systemd = {
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services = {
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# Trigger reset on bluetoothd failure
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bluetooth = {
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unitConfig.OnFailure = [ "bt-reset.service" ];
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};
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timerConfig = {
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Unit = "update-hetzner-ha-dns.service";
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OnCalendar = "*-*-* *:00/30:00";
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Persistent = true;
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};
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bt-reset = {
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description = "Reset Bluetooth adapter";
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after = [ "bluetooth.service" ];
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wantedBy = [ "timers.target" ];
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serviceConfig = {
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Type = "oneshot";
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ExecStart = script;
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Restart = "on-failure";
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RestartSec = "10s";
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StartLimitIntervalSec = "120";
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StartLimitBurst = 3;
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};
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};
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};
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services = {
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"update-hetzner-ha-dns" = {
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unitConfig = {
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Description = "updates Hetzner DNS for home-assistant";
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timers.bt-reset = {
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description = "Periodically reset Bluetooth adapter";
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wantedBy = [ "timers.target" ];
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timerConfig = {
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OnBootSec = "5min"; # first run 5 min after boot
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OnUnitActiveSec = "4h"; # then every 4 hours
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RandomizedDelaySec = "5min";
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};
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};
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user = {
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timers = {
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"update-hetzner-ha-dns" = {
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unitConfig = {
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Description = "updates Hetzner DNS for home-assistant";
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};
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timerConfig = {
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Unit = "update-hetzner-ha-dns.service";
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OnCalendar = "*-*-* *:00/30:00";
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Persistent = true;
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};
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wantedBy = [ "timers.target" ];
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};
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};
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serviceConfig = {
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Type = "exec";
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EnvironmentFile = config.age.secrets.hetzner-dns.path;
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services = {
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"update-hetzner-ha-dns" = {
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unitConfig = {
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Description = "updates Hetzner DNS for home-assistant";
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};
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serviceConfig = {
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Type = "exec";
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EnvironmentFile = config.age.secrets.hetzner-dns.path;
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};
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path = [
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pkgs.curl
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pkgs.coreutils # For `cat`
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pkgs.jq
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];
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script = ''
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LAST_IP_FILE="/tmp/hetzner-dns-ha-ip"
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INTERFACE="enp3s0"
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CURRENT_IP=$(curl -s --fail --interface "$INTERFACE" ifconfig.me)
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LAST_IP=""
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if [[ -f "$LAST_IP_FILE" ]]; then
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LAST_IP=$(cat "$LAST_IP_FILE")
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fi
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if [[ "$CURRENT_IP" == "$LAST_IP" ]]; then
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echo "IP unchanged, NOOP update."
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exit 0
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else
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echo "Updating IP"
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JSON_BODY=$(jq -n --arg ip "$CURRENT_IP" '{records: [{value: $ip}]}')
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curl \
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--fail \
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-X POST \
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-H "Authorization: Bearer $HETZNER_API_TOKEN" \
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-H "Content-Type: application/json" \
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-d "$JSON_BODY" \
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"https://api.hetzner.cloud/v1/zones/ppp.pm/rrsets/ha/A/actions/set_records" \
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&& echo $CURRENT_IP > $LAST_IP_FILE
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fi
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'';
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};
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path = [
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pkgs.curl
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pkgs.coreutils # For `cat`
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pkgs.jq
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];
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script = ''
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LAST_IP_FILE="/tmp/hetzner-dns-ha-ip"
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INTERFACE="enp3s0"
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CURRENT_IP=$(curl -s --fail --interface "$INTERFACE" ifconfig.me)
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LAST_IP=""
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if [[ -f "$LAST_IP_FILE" ]]; then
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LAST_IP=$(cat "$LAST_IP_FILE")
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fi
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if [[ "$CURRENT_IP" == "$LAST_IP" ]]; then
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echo "IP unchanged, NOOP update."
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exit 0
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else
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echo "Updating IP"
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JSON_BODY=$(jq -n --arg ip "$CURRENT_IP" '{records: [{value: $ip}]}')
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curl \
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--fail \
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-X POST \
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-H "Authorization: Bearer $HETZNER_API_TOKEN" \
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-H "Content-Type: application/json" \
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-d "$JSON_BODY" \
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"https://api.hetzner.cloud/v1/zones/ppp.pm/rrsets/ha/A/actions/set_records" \
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&& echo $CURRENT_IP > $LAST_IP_FILE
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fi
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'';
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};
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};
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};
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