pub struct AddressGroup {
  name : String
  members : Array[EmailAddress]
}

pub enum Body {
  Text(String)
  Binary(Bytes)
  Multipart(Array[MimePart])
}

pub struct ContentDisposition {
  disposition : String
  params : Array[(String, String)]
}

pub struct ContentType {
  media_type : String
  sub_type : String
  params : Array[(String, String)]
}

pub struct EmailAddress {
  local_part : String
  domain : String
}

pub struct EmailDate {
  year : Int
  month : Int
  day : Int
  hour : Int
  minute : Int
  second : Int
  tz_hour : Int
  tz_minute : Int
  tz_sign : Int
}

pub struct Header {
  name : String
  value : String
}

pub struct Mailbox {
  display_name : String
  address : EmailAddress?
}

pub struct Message {
  headers : Array[Header]
  body : String?
  mime_part : MimePart?
}

pub struct MessageId {
  id : String
  domain : String
}

pub struct MimePart {
  headers : Array[Header]
  body : Body
}

pub struct ReceivedInfo {
  from_ : String
  by : String
  with_ : String
  for_ : String
  date : String
}

pub enum Token {
  HeaderName(String)
  HeaderValue(String)
  AtSign
  Dot
  Comma
  Semicolon
  Colon
  Equals
  LAngle
  RAngle
  RBracket
  LParen
  RParen
  Slash
  QuotedString(String)
  Atom(String)
  DomainLiteral(String)
  Newline
  EOF
  Boundary(String)
}

fn address_group(name~ : String, members~ : Array[EmailAddress]) -> AddressGroup

fn address_to_string(addr : EmailAddress) -> String

fn all_headers(msg : Message, name : String) -> Array[Header]

fn attachment_part(body~ : Bytes, filename~ : String, mime_type? : String) -> MimePart

fn b64_decode_bytes(input : String) -> Array[Int]?

fn b64_decode_text(input : String) -> String?

fn b64_encode_bytes(data : Array[Int]) -> String

fn b64_encode_text(s : String) -> String

fn build_message(headers : Array[(String, String)], body : String) -> Message

fn canonical_charset(name : String) -> String

fn collapse_ws(s : String) -> String

fn collect_attachments(part : MimePart) -> Array[MimePart]

fn compare_dates(a : EmailDate, b : EmailDate) -> Int

fn content_type_param(ct : ContentType, name : String) -> String?

fn content_type_to_string(ct : ContentType) -> String

fn count_encoded_words(input : String) -> Int

fn days_in_month(year : Int, month : Int) -> Int

fn decode_content_disposition(value : String) -> ContentDisposition?

fn decode_content_type(value : String) -> ContentType?

fn decode_encoded_word(input : String) -> String?

fn decode_header_value(input : String) -> String

fn decode_rfc2231_value(input : String) -> String?

fn decoded_filename(cd : ContentDisposition) -> String?

fn detect_charset(params : Array[(String, String)]) -> String

fn disposition_param(cd : ContentDisposition, name : String) -> String?

fn disposition_to_string(cd : ContentDisposition) -> String

fn email_address(local_part~ : String, domain~ : String) -> EmailAddress

fn email_date(year~ : Int, month~ : Int, day~ : Int, hour? : Int, minute? : Int, second? : Int, tz_hour? : Int, tz_minute? : Int, tz_sign? : Int) -> EmailDate

fn email_date_to_iso(d : EmailDate) -> String

fn email_date_to_string(d : EmailDate) -> String

fn empty_message() -> Message

fn encode_encoded_word_b(s : String) -> String

fn encode_encoded_word_q(s : String) -> String

fn encode_header_for_output(value : String) -> String

fn eq_ignore_case(a : String, b : String) -> Bool

fn fold_header_value(name : String, value : String) -> String

fn format_rfc5322_date(d : EmailDate) -> String

fn generate_boundary(seed? : Int) -> String

fn generate_message_id(domain : String, timestamp? : Int) -> MessageId

fn get_header(msg : Message, name : String) -> String?

fn get_headers(msg : Message, name : String) -> Array[String]

fn has_encoded_words(input : String) -> Bool

fn has_header(msg : Message, name : String) -> Bool

fn header(name~ : String, value~ : String) -> Header

fn hex_char_to_int(c : Char) -> Int?

fn html_escape(s : String) -> String

fn html_to_text(html : String) -> String

fn html_unescape(s : String) -> String

fn is_application(ct : ContentType) -> Bool

fn is_ascii_compatible_charset(name : String) -> Bool

fn is_ascii_only(s : String) -> Bool

fn is_attachment(part : MimePart) -> Bool

fn is_bounce(msg : Message) -> Bool

fn is_image(ct : ContentType) -> Bool

fn is_ipv4(s : String) -> Bool

fn is_leap_year(year : Int) -> Bool

fn is_multipart(ct : ContentType) -> Bool

fn is_printable_ascii(s : String) -> Bool

fn is_reply(msg : Message) -> Bool

fn is_text(ct : ContentType) -> Bool

fn mailbox(display_name? : String, address~ : EmailAddress?) -> Mailbox

fn mailbox_addresses(mbs : Array[Mailbox]) -> Array[EmailAddress]

fn mailbox_display_name(mb : Mailbox) -> String

fn mailbox_list_to_string(mbs : Array[Mailbox]) -> String

fn mailbox_to_string(mb : Mailbox) -> String

fn make_html_message(from~ : String, to~ : String, subject~ : String, text_body~ : String, html_body~ : String) -> Message

fn make_multipart_message(from~ : String, to~ : String, subject~ : String, parts~ : Array[MimePart]) -> Message

fn make_text_message(from~ : String, to~ : String, subject~ : String, body~ : String, cc? : String) -> Message

fn merge_extended_params(params : Array[(String, String)]) -> Array[(String, String)]

fn message_all_addresses(msg : Message) -> Array[Mailbox]

fn message_boundary(msg : Message) -> String?

fn message_cc_mailboxes(msg : Message) -> Array[Mailbox]

fn message_content_type(msg : Message) -> ContentType?

fn message_date(msg : Message) -> EmailDate?

fn message_decoded_content_type(msg : Message) -> ContentType?

fn message_decoded_disposition(msg : Message) -> ContentDisposition?

fn message_from_mailboxes(msg : Message) -> Array[Mailbox]

fn message_header_count(msg : Message) -> Int

fn message_id(id~ : String, domain~ : String) -> MessageId

fn message_id_to_string(mid : MessageId) -> String

fn message_in_reply_to(msg : Message) -> Array[MessageId]

fn message_list_unsubscribe(msg : Message) -> String?

fn message_message_id(msg : Message) -> MessageId?

fn message_priority(msg : Message) -> String?

fn message_received_chain(msg : Message) -> Array[ReceivedInfo]

fn message_references(msg : Message) -> Array[MessageId]

fn message_reply_to(msg : Message) -> Array[Mailbox]

fn message_return_path(msg : Message) -> EmailAddress?

fn message_sender(msg : Message) -> Array[Mailbox]

fn message_subject(msg : Message) -> String

fn message_to_mailboxes(msg : Message) -> Array[Mailbox]

fn message_to_string(msg : Message) -> String

fn multipart_part(sub_type~ : String, boundary~ : String, parts~ : Array[MimePart]) -> MimePart

fn parse(input : String) -> Message

fn parse_address(input : String) -> EmailAddress?

fn parse_address_list(input : String) -> Array[EmailAddress]

fn parse_content_disposition(value : String) -> ContentDisposition?

fn parse_content_type(value : String) -> ContentType?

fn parse_date_header(value : String) -> EmailDate?

fn parse_email_date(input : String) -> EmailDate?

fn parse_mailbox(input : String) -> Mailbox?

fn parse_mailbox_list(input : String) -> Array[Mailbox]

fn parse_message(input : String) -> Message

fn parse_message_id(input : String) -> MessageId?

fn parse_message_ids(input : String) -> Array[MessageId]

fn parse_mime(input : String) -> Message

fn parse_mime_message(input : String) -> Message

fn parse_received_header(value : String) -> ReceivedInfo

fn part_body_text(part : MimePart) -> String?

fn part_filename(part : MimePart) -> String?

fn percent_decode(input : String) -> String?

fn plain_text(part : MimePart) -> String?

fn qp_decode(input : String) -> String?

fn qp_encode_bytes(data : Array[Int]) -> String

fn qp_encode_text(s : String) -> String

fn quote_header_string(s : String) -> String

fn received_info(from_? : String, by? : String, with_? : String, for_? : String, date? : String) -> ReceivedInfo

fn render_folded_message(msg : Message) -> String

fn render_mime_tree(part : MimePart) -> String

fn render_text_message(msg : Message) -> String

fn same_message(a : Message, b : Message) -> Bool

fn sanitize_text(s : String) -> String

fn serialize_encoded_headers(headers : Array[Header]) -> String

fn serialize_header_block(headers : Array[Header]) -> String

fn serialize_mailboxes(mbs : Array[Mailbox]) -> String

fn simple_hash(s : String) -> Int

fn starts_with_ignore_case(s : String, prefix : String) -> Bool

fn strip_comments(input : String) -> String

fn summarize_message(msg : Message) -> String

fn text_part(body~ : String) -> MimePart

fn to_string(msg : Message) -> String

fn to_timestamp(d : EmailDate) -> Int

fn tokenize(input : String) -> Array[Token]

fn truncate(s : String, max_len : Int) -> String

fn tz_offset_minutes(d : EmailDate) -> Int

fn url_encode(s : String) -> String

fn utf8_decode(bytes : Array[Int]) -> String

fn utf8_encode(s : String) -> Array[Int]

fn valid_header_name(name : String) -> Bool

fn validate_date(d : EmailDate) -> Bool

fn validate_domain(domain : String) -> Bool

fn validate_email_address(addr : EmailAddress) -> Bool

fn validate_local_part(local_part : String) -> Bool