code: func (h *HashMap) Get(k T) (T, bool) {
  	hash := h.hash(k)
  	for entry := h.table[hash]; entry != nil; entry = entry.next {
  		if h.eq(entry.k, k) {
  			return entry.v, true
  		}
  	}
  	return nil, false
  }
docs: // Get returns the value for k.