   end
 
   @doc """
-  Invokes the given `fun` for each item in the `collection`.
-  Returns only the items the function evalutes to true.
+  Filters the collection, i.e. returns only those elements
+  for which `fun` returns true.
 
   ## Examples
 

  end

  @doc """
  Invokes the given `fun` for each item in the `collection`.
    Returns the result of all function calls.

    ## Examples


  end

  @doc """
  Splits the enumerable into two lists, leaving `count` elements in the first
  one.

  ## Examples

