code: def _short_circuit(value=None):
      
      if not isinstance(value, list):
          return value
      if len(value) == 0:
          return value
      if len(value) == 1:
          if not isinstance(value[0], list):
              return value[0]
          else:
              if len(value[0]) == 1:
                  return value[0][0]
              else:
                  return value[0]
      else:
          value = filter(None, value)
          # Only checking first item and assumin all others are same type
          if isinstance(value[0], dict):
              if set(value[0].keys()) == set(value[1].keys()):
                  return value
              elif max([len(x.keys()) for x in value]) == 1:
                  newvalue = {}
                  for v in value:
                      key = v.keys()[0]
                      newvalue[key] = v[key]
                  return newvalue
              else:
                  return value
          else:
              return value
docs: Add the `value` to the `collection` by modifying the collection to be
      either a dict or list depending on what is already in the collection and
      value.
      Returns the collection with the value added to it.
  
      Clean up by removing single item array and single key dict.
      ['abc'] -> 'abc'
      [['abc']] -> 'abc'
      [{'abc':123},{'def':456}] -> {'abc':123,'def':456}
      [{'abc':123},{'abc':456}] -> [{'abc':123,'abc':456}] # skip for same set keys
      [[{'abc':123},{'abc':456}]] -> [{'abc':123,'abc':456}]