proc g_mime_utils_best_encoding(text: ptr cuchar; len: csize_t): GMimeContentEncoding {.
    importc, cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_decode_8bit(options: ptr GMimeParserOptions; text: cstring;
                              len: csize_t): cstring {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_decode_message_id(message_id: cstring): cstring {.importc,
    cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_generate_message_id(fqdn: cstring): cstring {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_decode_date(str: cstring): ptr GDateTime {.importc,
    cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_decode_phrase(options: ptr GMimeParserOptions;
                                       phrase: cstring): cstring {.importc,
    cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_decode_text(options: ptr GMimeParserOptions;
                                     text: cstring): cstring {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_encode_phrase(options: ptr GMimeFormatOptions;
                                       phrase: cstring; charset: cstring): cstring {.
    importc, cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_encode_text(options: ptr GMimeFormatOptions;
                                     text: cstring; charset: cstring): cstring {.
    importc, cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_format_date(date: ptr GDateTime): cstring {.importc,
    cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_printf(options: ptr GMimeParserOptions;
                                format: ptr GMimeFormatOptions; text: cstring): cstring {.
    importc, cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_header_unfold(value: cstring): cstring {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_quote_string(str: cstring): cstring {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_structured_header_fold(options: ptr GMimeParserOptions;
    format: ptr GMimeFormatOptions; header: cstring): cstring {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_text_is_8bit(text: ptr cuchar; len: csize_t): gboolean {.
    importc, cdecl, header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_unquote_string(str: cstring) {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}

proc g_mime_utils_unstructured_header_fold(options: ptr GMimeParserOptions;
    format: ptr GMimeFormatOptions; header: cstring): cstring {.importc, cdecl,
    header: "gmime/gmime.h", ...raises: [], tags: [], forbids: [].}