'Interact with a webcam capture button.'

def webcam_capture(self):

    self.q(css='#webcam_capture_button').click()
    def _check_func():
        next_step_button_classes = self.q(css='#next_step_button').attrs('class')
        next_step_button_enabled = ('is-disabled' not in next_step_button_classes)
        return (next_step_button_enabled, next_step_button_classes)
    Promise(_check_func, "The    'Next    Step'    button    is    enabled.").fulfill()
