curl --request POST \
  --url https://api.example.com/store/items/search \
  --header 'Content-Type: application/json' \
  --data '
{
  "namespace_prefix": [
    "<string>"
  ],
  "filter": {},
  "query": "<string>",
  "limit": 20,
  "offset": 0
}
'

{
  "items": [
    {
      "key": "<string>",
      "value": "<unknown>",
      "namespace": [
        "<string>"
      ]
    }
  ],
  "total": 123,
  "limit": 123,
  "offset": 123
}