Get metafield data via Storefront API with inContext params

Extensions
1

I executed this query within a Checkout UI Extension with both network_access and api_access enabled. However, the response always returns shop name and metafield is null.

    query @inContext(language: "EN", country: "UK") {
      shop {
        name
        metafield(namespace: "test", key: "test") {
          value
          type
        }
      }
    }

When defining this metafield in the shopify.extensions.toml file, the data is retrieved successfully. However, it cannot accept parameters such as inContext when accessed via the Storefront Query API.