code: func NewCMSketch(d, w int32) *CMSketch {
  	tbl := make([][]uint32, d)
  	for i := range tbl {
  		tbl[i] = make([]uint32, w)
  	}
  	return &CMSketch{depth: d, width: w, table: tbl}
  }
docs: // NewCMSketch returns a new CM sketch.