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I'd like to excute a graphQL with this kind of predicate:
```{parameters: {_contains: {"foo": "bar"}},```
but the syntax isn't quite right, I get the error
```Syntax Error: Expected Name, found String "date".```
can someone help?

I think I figured it out:
```{parameters: {_contains: {"boo: bar}},```

Ah ok was gonna say `_has_key` might be better but yeah <https://github.com/PrefectHQ/prefect/issues/4609#issue-909481063|this> thread is good

Did this end up working for you? It looks like <https://github.com/PrefectHQ/ui/issues/876|it’s still open> and I can’t get this to query as expected:
```query {
  flow (
    where: {parameters: {_has_key: "mykey"}}
  ) {
      name
      created_by {email}
      parameters 
    }
}```

What is the output without the where clause here? Do you see the parameters you are expecting?

I needed to query `flow_run` not `flow` :woman-facepalming::skin-tone-2:

FYI for future slack searchers finding their way here, results when querying `flow` looked like
```{
  "data": {
    "flow": []
  }
}```
which was not expected!

Ah ok sounds good! Glad you got that figured out!