TypeScript error when importing List from separate file

[carlosgrossi]

Hi folks,

I'm encountering a TypeScript error in my schema.ts file when I import a List from a separate .ts file. Here is the error message:

Type 'ListConfig<BaseListTypeInfo>' is not assignable to type 'ListConfig<TypeInfo<any>, any>'.
  Types of property 'fields' are incompatible.
    Type 'BaseFields<BaseListTypeInfo>' is not assignable to type 'BaseFields<TypeInfo<any>>'.
      'string' index signatures are incompatible.
        Type 'FieldTypeFunc<BaseListTypeInfo>' is not assignable to type 'FieldTypeFunc<TypeInfo<any>>'.
          Type 'NextFieldType<DBField, Arg<InputType> | undefined, Arg<InputType>, Arg<NullableInputType, false>, Arg<NullableInputType, false>, Arg<...>, BaseListTypeInfo>' is not assignable to type 'NextFieldType<DBField, Arg<InputType> | undefined, Arg<InputType>, Arg<NullableInputType, false>, Arg<NullableInputType, false>, Arg<...>, TypeInfo<...>>'.
            Type 'NextFieldType<DBField, Arg<InputType> | undefined, Arg<InputType>, Arg<NullableInputType, false>, Arg<NullableInputType, false>, Arg<...>, BaseListTypeInfo>' is not assignable to type 'CommonFieldConfig<TypeInfo<any>>'.
              Types of property 'access' are incompatible.
                Type 'FieldAccessControl<BaseListTypeInfo> | undefined' is not assignable to type 'FieldAccessControl<TypeInfo<any>> | undefined'.
                  Type '{ read?: IndividualFieldAccessControl<FieldReadItemAccessArgs<BaseListTypeInfo>> | undefined; create?: IndividualFieldAccessControl<...> | undefined; update?: IndividualFieldAccessControl<...> | undefined; }' is not assignable to type 'FieldAccessControl<TypeInfo<any>> | undefined'.
                    Type '{ read?: IndividualFieldAccessControl<FieldReadItemAccessArgs<BaseListTypeInfo>> | undefined; create?: IndividualFieldAccessControl<...> | undefined; update?: IndividualFieldAccessControl<...> | undefined; }' is not assignable to type '{ read?: IndividualFieldAccessControl<FieldReadItemAccessArgs<TypeInfo<any>>> | undefined; create?: IndividualFieldAccessControl<FieldCreateItemAccessArgs<...>> | undefined; update?: IndividualFieldAccessControl<...> | undefined; }'.
                      Types of property 'read' are incompatible.
                        Type 'IndividualFieldAccessControl<FieldReadItemAccessArgs<BaseListTypeInfo>> | undefined' is not assignable to type 'IndividualFieldAccessControl<FieldReadItemAccessArgs<TypeInfo<any>>> | undefined'.
                          Type 'IndividualFieldAccessControl<FieldReadItemAccessArgs<BaseListTypeInfo>>' is not assignable to type 'IndividualFieldAccessControl<FieldReadItemAccessArgs<TypeInfo<any>>>'.
                            Type 'FieldReadItemAccessArgs<TypeInfo<any>>' is not assignable to type 'FieldReadItemAccessArgs<BaseListTypeInfo>'.
                              Type 'FieldReadItemAccessArgs<TypeInfo<any>>' is not assignable to type 'BaseAccessArgs<BaseListTypeInfo>'.
                                The types of 'context.db' are incompatible between these types.
                                  Type 'KeystoneDbAPI<{ readonly User: TypeInfo<any>; }>' is not assignable to type 'KeystoneDbAPI<Record<string, BaseListTypeInfo<any>>>'.
                                    Property 'User' is incompatible with index signature.
                                      Type 'DbAPI<TypeInfo<any>>' is not assignable to type 'DbAPI<BaseListTypeInfo<any>>'.
                                        Type 'string' is not assignable to type '"User"'.ts(2322)
types.ts(218, 14): The expected type comes from property 'User' which is declared here on type 'Lists'

The error disappears if I add the List definition directly within schema.ts:

Alternatively, renaming the key from User to Users also removes the TypeScript error:

However, this change causes a GraphQL error when starting the server:

My Question:
What am I doing wrong? Is it possible to split the schema definitions into separate files for each List in KeystoneJS? If so, what is the correct way to do this to avoid this?