Group returns a new non-nil map containing the elements of s grouped by the keys returned from the key func.

KeySlice returns the keys of the map M, like slices.Collect(maps.Keys(m)).

SameKeys reports whether x and y have equal sets of keys.

Sorted returns an iterator over the entries of m in key order.

SortedFunc returns an iterator over the entries of m in the key order determined by cmp.

ValueSlice returns the values of the map M, like slices.Collect(maps.Values(m)).