export interface Credentials {
  /**
   * This field is only present if the access_type parameter was set to offline in the authentication request. For details, see Refresh tokens.
   */
  refresh_token?: string | null;
  /**
   * The time in ms at which this token is thought to expire.
   */
  expiry_date?: number | null;
  /**
   * A token that can be sent to a Google API.
   */
  access_token?: string | null;
  /**
   * Identifies the type of token returned. At this time, this field always has the value Bearer.
   */
  token_type?: string | null;
  /**
   * A JWT that contains identity information about the user that is digitally signed by Google.
   */
  id_token?: string | null;
  /**
   * The scopes of access granted by the access_token expressed as a list of space-delimited, case-sensitive strings.
   */
  scope?: string;
}

export interface CredentialRequest {
  /**
   * This field is only present if the access_type parameter was set to offline in the authentication request. For details, see Refresh tokens.
   */
  refresh_token?: string;
  /**
   * A token that can be sent to a Google API.
   */
  access_token?: string;
  /**
   * Identifies the type of token returned. At this time, this field always has the value Bearer.
   */
  token_type?: string;
  /**
   * The remaining lifetime of the access token in seconds.
   */
  expires_in?: number;
  /**
   * A JWT that contains identity information about the user that is digitally signed by Google.
   */
  id_token?: string;
  /**
   * The scopes of access granted by the access_token expressed as a list of space-delimited, case-sensitive strings.
   */
  scope?: string;
}

export interface JWTInput {
  type?: string;
  client_email?: string;
  private_key?: string;
  private_key_id?: string;
  project_id?: string;
  client_id?: string;
  client_secret?: string;
  refresh_token?: string;
  quota_project_id?: string;
}

export interface ImpersonatedJWTInput {
  type?: string;
  source_credentials?: JWTInput;
  service_account_impersonation_url?: string;
  delegates?: string[];
}

export interface CredentialBody {
  client_email?: string;
  private_key?: string;
}