default profile values in pystachio (Aurora configs)

output.txt

% cat test.aurora 
class Profile(Struct):
  a = Default(Integer, 1)

jobs = [
  Job(role = 'a', environment = 'devel', name = 'c', cluster='devcluster',
    task = SimpleTask('t', 'echo {{profile.a}}')).bind(profile=Profile()),

% aurora job inspect devcluster/a/devel/c test.aurora                   
Job level information
  name:       'c'
  role:       'a'
  contact:    '<class 'pystachio.composite.Empty'>'
  cluster:    'devcluster'
  instances:  '1'
  service:    False
  production: False

Task level information
  name: 't'

Process 't':
  cmdline:
    echo 1


% aurora job inspect devcluster/a/devel/c test.aurora --bind=profile.a=2
Job level information
  name:       'c'
  role:       'a'
  contact:    '<class 'pystachio.composite.Empty'>'
  cluster:    'devcluster'
  instances:  '1'
  service:    False
  production: False

Task level information
  name: 't'

Process 't':
  cmdline:
    echo 2