code: func (c *Memory) StartSampling(samplingInterval int, suppressRandomness bool) (*gcdmessage.ChromeResponse, error) {
  	var v MemoryStartSamplingParams
  	v.SamplingInterval = samplingInterval
  	v.SuppressRandomness = suppressRandomness
  	return c.StartSamplingWithParams(&v)
  }
docs: // StartSampling - Start collecting native memory profile.
  // samplingInterval - Average number of bytes between samples.
  // suppressRandomness - Do not randomize intervals between samples.