How to use the @sentry/node.Severity.Error function in @sentry/node

export function formatError (error: GraphQLError): GraphQLFormattedError {
  let code: string = _.get(error, 'extensions.code', 'Error')
  let info: any
  let level = Severity.Error

  const originalError: any = error.originalError
  if (isAxiosError(originalError)) {
    code = `Request${originalError.code}`
  } else if (isJoiValidationError(originalError)) {
    code = 'JoiValidationError'
    info = originalError.details
  } else if (isSequelizeError(originalError)) {
    code = originalError.name
    if (isUniqueConstraintError(originalError)) {
      info = originalError.fields
      level = Severity.Warning
    }
  } else if (isApolloError(originalError)){
    level = originalError.level || Severity.Warning
  } else if (isError(originalError)) {