code: func (c *InternalClient) Query(ctx context.Context, index string, queryRequest *pilosa.QueryRequest) (*pilosa.QueryResponse, error) {
  	span, ctx := tracing.StartSpanFromContext(ctx, "InternalClient.Query")
  	defer span.Finish()
  	return c.QueryNode(ctx, c.defaultURI, index, queryRequest)
  }
docs: // Query executes query against the index.