# - id: article number or message id
# Returns:
# - resp: server response if succesful
+ # - nr: article number
+ # - id: message id
# - list: the lines of the article's header
def head(self, id):
# - id: article number or message id
# Returns:
# - resp: server response if succesful
+ # - nr: article number
+ # - id: message id
# - list: the lines of the article's body
def body(self, id):
# - id: article number or message id
# Returns:
# - resp: server response if succesful
+ # - nr: article number
+ # - id: message id
# - list: the lines of the article
def article(self, id):