pub fn get_body(mbox: Mail) -> String
pub fn get_date(mbox: Mail) -> Result(String, Nil)
pub fn get_from(mbox: Mail) -> Result(String, Nil)
pub fn get_header(mbox: Mail, key: String) -> Result(String, Nil)
pub fn get_headers(mbox: Mail) -> Dict(String, String)
pub fn get_message_id(mbox: Mail) -> Result(String, Nil)
pub fn get_references(mbox: Mail) -> List(String)
pub fn get_subject(mbox: Mail) -> Result(String, Nil)
pub fn get_to(mbox: Mail) -> Result(String, Nil)
pub fn parse(mboxcontents: String) -> Mail