Dict.update/4
Keyword.update!/3
Keyword.update/4
Dict.update!/3
Kernel.update_in/2
Kernel.update_in/3
Kernel.SpecialForms.unquote_splicing/1
Kernel.SpecialForms.unquote/1
List.unzip/1
Macro.unescape_tokens/2
Macro.unescape_tokens/1
Macro.unescape_string/1