Load extra data embed into binary format String object.
Reset nil attributes to their default values to make the spec valid
Raw Strings are JSON Objects (the raw bytes are stored in an array for the key “raw”). The Ruby String can be created by this module method.
Returns true if the element has inline XML content.
Returns true if the element contains inline content that has a text media type.
Returns true if the element contains inline content that has a XML media type.
Returns true if the content needs to be encoded in base64.