class RubyLLM::StreamAccumulator

def add(chunk)
  RubyLLM.logger.debug chunk.inspect
  @model_id ||= chunk.model_id
  if chunk.tool_call?
    accumulate_tool_calls chunk.tool_calls
  else
    @content << (chunk.content || '')
  end
  count_tokens chunk
  RubyLLM.logger.debug inspect
end