TypeScript errors in 6.0.2

[Methuselah96]

When I run type-checking with the latest version of twilio with skipLibCheck set to false, I get the following type errors:

./node_modules/twilio/lib/rest/intelligence/v3/conversation.d.ts(203,5): error TS2717: Subsequent property declarations must have the same type.  Property 'name' must be of type 'string | null | undefined', but here has type 'string | undefined'.
./node_modules/twilio/lib/rest/intelligence/v3/conversation.d.ts(204,5): error TS2717: Subsequent property declarations must have the same type.  Property 'type' must be of type 'string | null | undefined', but here has type 'string | undefined'.
./node_modules/twilio/lib/rest/voice/v3/transcription.d.ts(234,5): error TS2717: Subsequent property declarations must have the same type.  Property 'conversationConfigurationId' must be of type 'string | null | undefined', but here has type 'string | undefined'.
./node_modules/twilio/lib/rest/voice/v3/transcription.d.ts(252,5): error TS2717: Subsequent property declarations must have the same type.  Property 'mediaUrl' must be of type 'string | null | undefined', but here has type 'string | undefined'.
./node_modules/twilio/lib/rest/voice/v3/transcription.d.ts(253,5): error TS2717: Subsequent property declarations must have the same type.  Property 'sourceId' must be of type 'string | null | undefined', but here has type 'string | undefined'.
./node_modules/twilio/lib/rest/voice/v3/transcription.d.ts(255,5): error TS2717: Subsequent property declarations must have the same type.  Property 'conversationId' must be of type 'string | null | undefined', but here has type 'string | undefined'.
./node_modules/twilio/lib/rest/voice/v3/transcription.d.ts(257,5): error TS2717: Subsequent property declarations must have the same type.  Property 'duration' must be of type 'number | null | undefined', but here has type 'number | undefined'.
./node_modules/twilio/lib/rest/voice/v3/transcription.d.ts(269,5): error TS2717: Subsequent property declarations must have the same type.  Property 'events' must be of type 'string[] | null | undefined', but here has type 'string[] | undefined'.