The value of the content-type header of the message which was encoded/decoded.
def get_content_type() -> str: ... def set_content_type(value: str) -> None: ...
content_type = property(get_content_type, set_content_type)
This property contains the value of the content-type header of the message which was encoded/decoded. The class filters it out from the message_headers. It shows the user about the type of the parts and their relation to each other.
The content-type attributes such as filename, boundary, charset etc are held in this property.