declarative_inverses.py

def generate_inverse_transformations(left,right):
   #?????
   return (lambda x: x, lambda x: x)

left_form = {
  'key': 'abc123',
  'name': {'first': 'joe', 'last': 'stein'},
  'triples': {1: 3, 2: 6, 3: 9, 4: 12, 5: 15},
  'opposites': [('low','high'),('big','small')]
}

right_form = {
  'uuid': 'abc123',
  'first_name': 'joe',
  'last_name': 'stein',
  'triple_tuples': [(1, 3), (2, 6), (3, 9), (4, 12), (5, 15)],
  'opposites': [{'first': 'low', 'second': 'high'}, {'first': 'big', 'second': 'small'}]
}


#IMPLEMENT generate_inverse_transformations()
# So that, when:
#f, g = generate_inverse_transformations(left_form, right_form)
# THEN:
#f(left) == right
#g(right) == left
#f(g(right)) == right
# For any (left, right) of the same structure as left_form and right_form

#More specifically, if we have:
specific_input = {
  'key': 'defghi',
  'name': {'first': 'slug', 'last': 'ant'},
  'triples': {1:2, 3:4},
  'opposites': []
}
#Then, f(specific) should yield:
specific_output = {
  'uuid': 'defghi',
  'first_name': 'slug',
  'last_name': 'ant',
  'triple_tuples': (1,2), (3,4)},
  'opposites': []
}