Cómo establecer credenciales para SpeechClient Java Google API

CredentialsProvider credentialsProvider = FixedCredentialsProvider.create(ServiceAccountCredentials.fromStream(new FileInputStream("path/to/service-account.json")));

SpeechSettings settings = SpeechSettings.newBuilder().setCredentialsProvider(credentialsProvider).build();
SpeechClient speechClient = SpeechClient.create(settings);
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