curl -X POST https://api.vapi.ai/assistant \ -H "Authorization: Bearer 7c323bae-414a-4e08-ae3b-d8578e463aed" \ -H "Content-Type: application/json" \ -d '{ "transcriber": { "provider": "deepgram", "codeSwitchingEnabled": false, "keywords": [ "dialoft", "dialoftai" ], "language": "en", "model": "nova-2" }, "model": { "provider": "openai", "model": "gpt-3.5-turbo", "fallbackModels": [ "gpt-3.5-turbo-0125" ], "messages": [ { "role": "system", "content": "how are you" } ], "toolIds": [], "tools": [], "knowledgeBase": { "knowledgeBaseId": "ca6c4605-203d-4bc0-a18b-cad7f277956c" }, "voice": { "provider": "11labs", "voiceId": "myra", "fallbackPlan": { "voices": [ { "provider": "11labs", "voiceId": "sarah" } ] }, "model": "eleven_turbo_v2_5", "chunkPlan": {} }, "firstMessage": "how are you 2 first message", "firstMessageMode": "assistant-speaks-first", "clientMessages": [ "tool-calls", "tool-calls-result" ], "serverMessages": [ "end-of-call-report", "hang", "tool-calls", "transfer-destination-request" ], "maxDurationSeconds": 600, "backgroundSound": "off", "backgroundDenoisingEnabled": true, "silenceTimeoutSeconds": 30, "voicemailDetection": { "provider": "twilio", "voicemailDetectionTypes": [ "machine_end_silence", "machine_end_beep", "machine_end_other", "machine_start", "fax", "unknown", "human" ], ], @User it still not assigning knowledge base to the agent