   defdelegate length(string), to: String.Graphemes
 
   @doc """
-  Returns the grapheme in the `position` of the given utf8 `string`.
+  Returns the grapheme at the `position` of the given utf8 `string`.
   If `position` is greater than `string` length, then it returns `nil`.
 
   ## Examples

  end

  @doc """
  Reverses the given string. Works on graphemes.

  ## Examples



  More information about graphemes can be found in the [Unicode
  Standard Annex #29](http://www.unicode.org/reports/tr29/).
  The current Elixir version implements Extended Grapheme Cluster
  algorithm.

  ## String and binary operations

  To act accordingly to the Unicode Standard, many functions
  in this module run in linear time, as it needs to traverse
  the whole string considering the proper Unicode codepoints.

  For example, `String.length/1` is going to take longer as
