# File lib/deltacloud.rb, line 50
  def self.valid_credentials?(user_name, password, api_url, opts={})
    api=API.new(user_name, password, api_url, opts)
    result = false
    api.request(:get, '', :force_auth => '1') do |response|
      result = true if response.code.eql?(200)
    end
    return result
  end