How to use enum in external functions like signup, login etc in schema.graphql with its index.ts

[Anujraval24]

How we can use enum type in schema.graphql with custom extensions or functions ?

My code is shows here :

types.graphql schema
Signup.graphql schema

when i deploy the graphcool deploy, I got an error saying
Global ✖ Schema Extension Error for function 'signupUser': Relations are currently not supported. Field 'accessRole'