old_contents: from pynYNAB.Entity import Entity, undef
  from pynYNAB.schema.Fields import EntityField
  
  
  class CatalogBudget(Entity):
      Fields= dict(
              budget_name=EntityField(None),
              is_tombstone=EntityField(None)
          )
  
  
  class UserBudget(Entity):
      Fields= dict(
              budget_id=EntityField(undef),
              user_id=EntityField(None),
              is_tombstone=EntityField(False),
              permissions=EntityField(None)
          )
  
  
  class UserSetting(Entity):
      Fields= dict(
              setting_name=EntityField(None),
              user_id=EntityField(None),
              setting_value=EntityField(None)
          )
  
  
  class User(Entity):
      Fields= dict(
              username=EntityField(None),
              trial_expires_on=EntityField(None),
              is_tombstone=EntityField(False),
              email=EntityField(None),
              feature_flags=EntityField(None),
              is_subscribed=EntityField(None),
          )
  
  
  class BudgetVersion(Entity):
      Fields= dict(
              date_format=EntityField(None),
              last_accessed_on=EntityField(None),
              currency_format=EntityField(None),
              budget_id=EntityField(None),
              is_tombstone=EntityField(False),
              version_name=EntityField(None),
          )
  
  
  
  
new_contents: from pynYNAB.Entity import Entity, undef
  from pynYNAB.schema.Fields import EntityField
  
  
  class CatalogBudget(Entity):
      Fields= dict(
              budget_name=EntityField(None),
              is_tombstone=EntityField(None)
          )
  
  
  class UserBudget(Entity):
      Fields= dict(
              budget_id=EntityField(undef),
              user_id=EntityField(None),
              is_tombstone=EntityField(False),
              permissions=EntityField(None)
          )
  
  
  class UserSetting(Entity):
      Fields= dict(
              setting_name=EntityField(None),
              user_id=EntityField(None),
              setting_value=EntityField(None)
          )
  
  
  class User(Entity):
      Fields= dict(
              username=EntityField(None),
              trial_expires_on=EntityField(None),
              is_tombstone=EntityField(False),
              email=EntityField(None),
              feature_flags=EntityField(None),
              is_subscribed=EntityField(None),
          )
  
  
  class BudgetVersion(Entity):
      Fields= dict(
              date_format=EntityField(None),
              last_accessed_on=EntityField(None),
              currency_format=EntityField(None),
              budget_id=EntityField(None),
              is_tombstone=EntityField(False),
              version_name=EntityField(None),
              source=EntityField(None),
          )
  
  
  
  
subject: Add source to BudgetVersion