code: func (c *RawBinaryClient) Delete(key string) MutateResponse {
  	c.mutex.Lock()
  	defer c.mutex.Unlock()
  
  	if resp := c.sendDeleteRequest(key); resp != nil {
  		return resp
  	}
  
  	return c.receiveMutateResponse(opDelete, key)
  }
docs: // See Client interface for documentation.