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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def user_name_attributes(user, service):
 """Return all available user name related fields and methods."""

    attributes = {}
    attributes['username'] = user.get_username()
    attributes['full_name'] = user.get_full_name()
    attributes['short_name'] = user.get_short_name()
    return attributes