How to add context in this format ? is it possible.

Hi @peacekeeper i need to add new context like below.
This library support that ?
{
  "@context": [
    "https://www.w3.org/2018/credentials/v1",
    **{
      "dk": "https://ld.dock.io/credentials#",
      "BasicCredential": "dk:BasicCredential",
      "name": "dk:name",
      "title": "dk:title",
      "description": "dk:description",
      "logo": "dk:logo"
    }**
  ],