   @doc """
   Merges the dict `dict2` into dict `dict1`.
 
-  If one of the `dict2` entries already exists in `dict1`, the
-  functions in entries in `dict2` have higher precedence unless a
+  If one of the `dict2` entries already existed in `dict1`, the
+  conflicting entries in `dict2` have higher precedence unless a
   function is given to resolve conflicts.
 
   Notice this function is polymorphic as it merges dicts of any

  Returns the value associated with `key` in `dict` as
  well as the `dict` without `key`.

  ## Examples

      iex> dict = Enum.into([a: 1], dict_impl.new)


  @doc """
  Returns a new dict where the given `keys` are removed from `dict`.
  All non-member keys are ignored.

  ## Examples

