TumblrOAuth.configure do |config|
  config.consumer_key       = 'consumer_key'
  config.consumer_secret    = 'consumer_secret'
end

tumblr_client = TumblrOAuth::Client(
  :oauth_token        => 'oauth_token'
  :oauth_token_secret => 'oauth_secret'
  :blog_host          => 'blog_host_name' # For example "test.tumblr.com"
end