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Cohee
231
public/scripts/extensions/tts/elevenlabs.js
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231
public/scripts/extensions/tts/elevenlabs.js
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export { ElevenLabsTtsProvider }
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class ElevenLabsTtsProvider {
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//########//
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// Config //
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//########//
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settings
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voices = []
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separator = ' ... ... ... '
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get settings() {
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return this.settings
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}
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defaultSettings = {
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stability: 0.75,
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similarity_boost: 0.75,
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apiKey: "",
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multilingual: false,
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voiceMap: {}
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}
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get settingsHtml() {
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let html = `
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<label for="elevenlabs_tts_api_key">API Key</label>
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<input id="elevenlabs_tts_api_key" type="text" class="text_pole" placeholder="<API Key>"/>
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<label for="elevenlabs_tts_stability">Stability: <span id="elevenlabs_tts_stability_output"></span></label>
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<input id="elevenlabs_tts_stability" type="range" value="${this.defaultSettings.stability}" min="0" max="1" step="0.05" />
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<label for="elevenlabs_tts_similarity_boost">Similarity Boost: <span id="elevenlabs_tts_similarity_boost_output"></span></label>
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<input id="elevenlabs_tts_similarity_boost" type="range" value="${this.defaultSettings.similarity_boost}" min="0" max="1" step="0.05" />
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<label class="checkbox_label" for="elevenlabs_tts_multilingual">
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<input id="elevenlabs_tts_multilingual" type="checkbox" value="${this.defaultSettings.multilingual}" />
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Enable Multilingual
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</label>
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`
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return html
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}
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onSettingsChange() {
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// Update dynamically
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this.settings.stability = $('#elevenlabs_tts_stability').val()
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this.settings.similarity_boost = $('#elevenlabs_tts_similarity_boost').val()
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this.settings.multilingual = $('#elevenlabs_tts_multilingual').prop('checked')
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}
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loadSettings(settings) {
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// Pupulate Provider UI given input settings
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if (Object.keys(settings).length == 0) {
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console.info("Using default TTS Provider settings")
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}
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// Only accept keys defined in defaultSettings
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this.settings = this.defaultSettings
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for (const key in settings){
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if (key in this.settings){
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this.settings[key] = settings[key]
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} else {
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throw `Invalid setting passed to TTS Provider: ${key}`
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}
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}
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$('#elevenlabs_tts_stability').val(this.settings.stability)
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$('#elevenlabs_tts_similarity_boost').val(this.settings.similarity_boost)
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$('#elevenlabs_tts_api_key').val(this.settings.apiKey)
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$('#tts_auto_generation').prop('checked', this.settings.multilingual)
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console.info("Settings loaded")
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}
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async onApplyClick() {
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// Update on Apply click
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return await this.updateApiKey().catch( (error) => {
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throw error
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})
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}
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async updateApiKey() {
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// Using this call to validate API key
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this.settings.apiKey = $('#elevenlabs_tts_api_key').val()
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await this.fetchTtsVoiceIds().catch(error => {
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throw `TTS API key validation failed`
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})
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this.settings.apiKey = this.settings.apiKey
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console.debug(`Saved new API_KEY: ${this.settings.apiKey}`)
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}
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//#################//
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// TTS Interfaces //
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//#################//
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async getVoice(voiceName) {
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if (this.voices.length == 0) {
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this.voices = await this.fetchTtsVoiceIds()
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}
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const match = this.voices.filter(
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elevenVoice => elevenVoice.name == voiceName
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)[0]
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if (!match) {
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throw `TTS Voice name ${voiceName} not found in ElevenLabs account`
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}
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return match
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}
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async generateTts(text, voiceId){
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const historyId = await this.findTtsGenerationInHistory(text, voiceId)
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let response
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if (historyId) {
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console.debug(`Found existing TTS generation with id ${historyId}`)
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response = await this.fetchTtsFromHistory(historyId)
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} else {
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console.debug(`No existing TTS generation found, requesting new generation`)
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response = await this.fetchTtsGeneration(text, voiceId)
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}
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return response
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}
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//###################//
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// Helper Functions //
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//###################//
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async findTtsGenerationInHistory(message, voiceId) {
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const ttsHistory = await this.fetchTtsHistory()
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for (const history of ttsHistory) {
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const text = history.text
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const itemId = history.history_item_id
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if (message === text && history.voice_id == voiceId) {
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console.info(`Existing TTS history item ${itemId} found: ${text} `)
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return itemId
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}
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}
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return ''
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}
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//###########//
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// API CALLS //
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//###########//
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async fetchTtsVoiceIds() {
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const headers = {
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'xi-api-key': this.settings.apiKey
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}
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const response = await fetch(`https://api.elevenlabs.io/v1/voices`, {
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headers: headers
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})
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}: ${await response.text()}`)
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}
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const responseJson = await response.json()
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return responseJson.voices
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}
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async fetchTtsVoiceSettings() {
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const headers = {
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'xi-api-key': this.settings.apiKey
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}
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const response = await fetch(
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`https://api.elevenlabs.io/v1/voices/settings/default`,
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{
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headers: headers
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}
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)
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}: ${await response.text()}`)
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}
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return response.json()
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}
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async fetchTtsGeneration(text, voiceId) {
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let model = "eleven_monolingual_v1"
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if (this.settings.multilingual == true) {
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model = "eleven_multilingual_v1"
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}
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console.info(`Generating new TTS for voice_id ${voiceId}`)
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const response = await fetch(
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`https://api.elevenlabs.io/v1/text-to-speech/${voiceId}`,
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{
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method: 'POST',
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headers: {
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'xi-api-key': this.settings.apiKey,
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({
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model: model,
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text: text,
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voice_settings: this.settings
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})
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}
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)
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if (!response.ok) {
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toastr.error(response.statusText, 'TTS Generation Failed');
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throw new Error(`HTTP ${response.status}: ${await response.text()}`);
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}
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return response
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}
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async fetchTtsFromHistory(history_item_id) {
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console.info(`Fetched existing TTS with history_item_id ${history_item_id}`)
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const response = await fetch(
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`https://api.elevenlabs.io/v1/history/${history_item_id}/audio`,
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{
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headers: {
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'xi-api-key': this.settings.apiKey
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}
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}
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)
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}: ${await response.text()}`)
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}
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return response
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}
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async fetchTtsHistory() {
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const headers = {
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'xi-api-key': this.settings.apiKey
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}
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const response = await fetch(`https://api.elevenlabs.io/v1/history`, {
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headers: headers
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})
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}: ${await response.text()}`)
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}
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const responseJson = await response.json()
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return responseJson.history
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}
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}
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