title: Graphene/GraphQL query without model binding
body: <p>I want to pass JSON from client-side, process that JSON on server-side and then response to Client depending on JSON content.</p>
  
  <p>I know, that in usual case with Python/Django I need to use Graphene/GraphQL where I need to describe DjangoObjectType descendant with model, binded in descendat's Meta class. Then I should include this class to Query class, as class field.</p>
  
  <p>This is the way of models' data communication via Graphene.</p>
  
  <p>How can I solve my task as I don't need any model binding for my Query?</p>