def speak_sentence(sentence, tag = nil, gender = "female", voice = "kate")
      play_audio({:gender => gender || "female", :locale => "en_US",
                  :voice => voice || "kate", :sentence => sentence, :tag => tag})
    end
def speak_sentence(sentence, tag = nil, gender = "female", voice = "kate")
      play_audio({:gender => gender || "female", :locale => "en_US",
                  :voice => voice || "kate", :sentence => sentence, :tag => tag})
    end
Speak a sentence
 @param sentence [String[ sentence to speak
 @param tag [String] optional tag value
 @param gender [String] optional gender of voice
 @param voice [String] optional voice name