snippet.rb

class ...BlackListPage
  
  text_field(:email) { @browser.text_field(:id, "emailField") }
  button(:search)    { @browser.button(:id, 'search') }
  
  def fill(params = {})
    self.email = params[:email]
    
    search!
  end
end



#### step ###

@site.....black_list_page.fill :email => "finn"