Typescript, typing the environment variables returns never about envalid HOT 1 CLOSED

export interface EnvironmentVariables {
  HOST: string
  PORT: number
  PROTOCOL: 'http' | 'https'
}

import e, { cleanEnv, RequiredValidatorSpec } from 'envalid'

 const environmentVariablesSchema: {
      [key in keyof EnvironmentVariables]: RequiredValidatorSpec<EnvironmentVariables[key]>
    } = {
      HOST: e.host({ default: 'localhost' }),
      PORT: e.port({ default: 3001 }),
      PROTOCOL: e.str({ choices: ['http', 'https'], default: 'http' }),
    } as const

    const env = cleanEnv(
      dotenv.config({ path: path.resolve(process.cwd(), fileName) }),
      environmentVariablesSchema
    )