import requests #Create Phone Number (POST /phone-number) response = requests.post( "https://api.vapi.ai/phone-number", headers={ "Authorization": "123" }, json={ "provider": "vapi" }, ) why when i do this i get created (status 201) and when i check number i have ERROR (Error: TypeError Message: A phone number must either be a string or an object of shape { phone, [country] }. Timestamp: 2025-08-13T16:11:22.038Z)

this is how we fixed it: def create_phone_number(self, ai_agent: AIAgent, assistant_id: str = None) -> Dict[str, Any]: """Create a phone number in Vapi for the given AI agent, trying fallback area codes if needed.""" if not self.is_configured(): raise Exception("Vapi not properly configured for this tenant") from vapi.types.create_vapi_phone_number_dto import CreateVapiPhoneNumberDto area_codes_to_try = ["509"] last_error = None for attempt, area_code in enumerate(area_codes_to_try): try: phone_data = CreateVapiPhoneNumberDto( name=f"{ai_agent.agent_name} - {ai_agent.business_name}", assistant_id=assistant_id, number_desired_area_code=area_code, ) response = self.client.phone_numbers.create(request=phone_data) return { "success": True, "phone_number": response.number if hasattr(response, "number") else None, "phone_number_id": response.id if hasattr(response, "id") else None, "provider": response.provider if hasattr(response, "provider") else "vapi", "response": response, "area_code_used": area_code, } except Exception as e: last_error = e if attempt == 0: suggested_codes = self._parse_suggested_area_codes(str(e)) if suggested_codes: for code in suggested_codes: if code not in area_codes_to_try: area_codes_to_try.append(code) else: break continue return { "success": False, "error": str(last_error), "phone_number": None, "phone_number_id": None, "attempted_area_codes": area_codes_to_try, }