Authorization: Bearer ********************curl --location '/audio/speech' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"model": "string",
"input": "string",
"instructions": "string",
"voice": "string",
"response_format": "mp3",
"speed": 1,
"stream_format": "audio"
}'null