Unable to exclude a data set.

[andyjsharp]

Hi, I'm sure that this is user error from me, but I'm stuck trying to perform the following:
JSON data is as shown below, and I am trying to return only the first record on the basis that I do not want to return records that have a key "type" defined.

[
  {
    "name": "foo",
    "data": [
      {
        "value": "bar"
      }
    ]
  },
  {
    "name": "foo",
    "data": [
      {
        "value": "bar",
        "type": "foo"
      }
    ]
  }
]

I have tried with the following jsonpath_query = "$[?(@['name']=='foo'&@['data'][0]['value'] == 'bar'&@['data'][0]['type'])]" as a basis, but I want to exclude the records rather than include them. e.g. not(@['data'][0]['type'])

Is this possible with jsonpath-ng or must I first match all the data records, and then filter out those records with a "type" field? e.g.

data = '''[
  { "name": "foo", "data": [ { "value": "bar", "other": "ham" } ] },
  { "name": "foo", "data": [ { "value": "bar", "type": "foo" } ] }
]
'''

data = json.loads(data)

q = "$[?(@['name']=='foo'&@['data'][0]['value'] == 'bar')]"
f = "$[?(@['data'][0]['type'])]"
expr = parse(q)
f_expr= parse(f)

for match in f_expr.filter(lambda d: True, expr.find(data)):
    print(match.value)

Many thanks.