in asfyaml/dataobjects.py [0:0]
def __init__(self, username):
#: str: The ASF user id of the person that pushed this commit, for instance :samp:`humbedooh`
self.username = username
#: str: The ASF email address of the person that pushed this commit, for instance :samp:`humbedooh@apache.org`.
self.email = f"{username}@apache.org"