class TencentCloud::Common::AbstractClient

def build_req(action, params, req, options = {})
  if %w[HmacSHA1 HmacSHA256].include? @profile.sign_method
    build_req_with_v1_signature(action, params, req)
  elsif @profile.sign_method == 'TC3-HMAC-SHA256' || options['IsMultipart']
    build_req_with_v3_signature(action, params, req, options)
  else
    raise TencentCloudSDKException.new('ClientError', 'Invalid signature method')
  end
end