text: LegacyStringsLegacyStrings
  The LegacyStrings package provides compatibility string types from Julia 0.5 (and earlier), which were removed in subsequent versions, including:
  ASCIIString: a single-byte-per character string type that can only hold ASCII string data.
  UTF8String: a string type with single byte code units (
  UInt8), encoding strings as UTF-8.
  UTF16String: a string type with two-byte native-endian code units (
  UInt16), encoding strings as UTF-16.
  UTF32String: a string type with four-byte native-endian code units (
  UInt32), encoding strings as UTF-32.
  ByteString: a type alias for
  Union{ASCIIString,UTF8String}, i.e. strings that can be passed to C directly.
  WString: an alias for
  UTF16Stringif
  Cwchart_tis two bytes (i.e. Windows) or
  UTF32Stringotherwise.
  RepString: a string type for efficient handling of repeated strings.
  LegacyStrings also defines and exports converter functions for these types, i.e.:
  ascii: convert to
  ASCIIString; since
  Baseexports an
  asciifunction as well, you must explicitly do
  import LegacyStrings: asciior write
  LegacyStrings.asciiin order to use this function rather than
  Base.ascii.
  utf8: convert to
  UTF8String.
  utf16: convert to
  UTF16String.
  utf32: convert to
  UTF32String.
  wstring: alias for
  utf16or
  utf32according to what
  WStringis an alias to.