missing cred for Watson

[willwade]

Prerequisites

• Can you reproduce the problem?
• Are you running the latest version?
• Did you check the documentation?
• Did you perform a cursory search?

Description

        client = WatsonClient(credentials=('SOMEKEY',
                              'https://gateway-lon.watsonplatform.net/text-to-speech/api'))
        tts = WatsonTTS(client=WatsonClient())
        tts.synth('<speak>some text'</speak>', 'mysound.wav', format='wav')

This gives you TypeError: WatsonClient.__init__() missing 1 required positional argument: 'credentials'

But looking at the docs - I cant see I'm missing any credential ?

[willwade]

ive altered this in #25 - watson now has api_key, region, instance_id (good luck on finding your instance id! Watson have such confusing systems for their url/endpoints etc)