code: public function createDrupalUser($roles, TableNode $fields = null)
      {
          $this->createUserWithRoles($roles, null !== $fields ? $fields->getRowsHash() : []);
      }
docs: @see loginCreatedUser()
  
  @Then /^(?:|I )create a user with "([^"]*)" role(?:|s)(?:| and filled fields:)$/