Is there a way to have @list be suppressed and replaced with just a json list?

i.e:
with a context
"keyParts": {
"@id": "metaframe:keyParts"
}

I get this returned but I want it to be just a list

"keyParts" : {
      "@list" : [ {
        "uri" : "http://keypart1"
      }, {
        "uri" : "http://keypart2"
      } ]
    }