oneOf enums prone to TS2693: 'AssetStateEnum ' only refers to a type, but is being used as a value here.

Description

Generator produced:

export const AssetStateEnum = {
    Expected: 'EXPECTED',
    Live: 'LIVE',
    Retiring: 'RETIRING'
} as const;
export type AssetStateEnum = typeof AssetStateEnum[keyof typeof AssetStateEnum];

if used as:

import {
  AssetStateEnum ,
} from 'cmdb-openapi-angular-client';

...
array.includes(AssetStateEnum.Live)

then getting:

TS2693: 'AssetStateEnum ' only refers to a type, but is being used as a value here. [plugin angular-compiler]

openapi-generator version

"@openapitools/openapi-generator-cli": "^2.24.0"

  "generator-cli": {
    "version": "7.16.0"
  }

OpenAPI declaration file content or url

    AssetStateEnum:
      type: string
      oneOf:
        - enum: [EXPECTED]
          description: >-
            ...
        - enum: [LIVE]
          description: >-
            ....
        - enum: [RETIRING]
          description: >-
            ...

i.e. leveraging new 7.16 feature that allows to describe enum literals using the oneOf trick.

Steps to reproduce

Define enum schema using oneOf and generate Angular client using 2.24.0 generator.

Suggest a fix

Consider exporting the generated type and the object under different names, e.g. adding Type suffix to type such as:

export type AssetStateEnumType = typeof AssetStateEnum[keyof typeof AssetStateEnum];

to help disambiguate the import in the use site.

Start by reproducing the issue with the provided AssetStateEnum oneOf schema and the Angular client generator version 7.16.0. Then trace the generator's TypeScript Angular enum output and related tests, if present. Done means the generated enum value can be imported and used without TS2693 while the corresponding type remains usable.