Swift_Mime_Headers_AbstractHeader | --Swift_Mime_Headers_UnstructuredHeader | --Swift_Mime_Headers_ParameterizedHeader
Located in File: /vendors/swiftMailer/classes/Swift/Mime/Headers/ParameterizedHeader.php
Overrides : Swift_Mime_Headers_UnstructuredHeader::__construct() Creates a new SimpleHeader with $name.
Overrides : Swift_Mime_Headers_UnstructuredHeader::getFieldBody() Get the value of this header prepared for rendering.
Overrides : Swift_Mime_Headers_UnstructuredHeader::getFieldType() Get the type of Header that this instance represents.
Overrides : Swift_Mime_Headers_AbstractHeader::setCharset() Set the character set used in this Header.
Overrides : Swift_Mime_Headers_AbstractHeader::toTokens() Generate a list of all tokens in the final header.
This doesn't need to be overridden in theory, but it is for implementation reasons to prevent potential breakage of attributes.