How get filed type?

Hello!
I’m use scheme.filedKeys:

curl --request POST \
  http://influxdb.test:8086/api/v2/query?org=primary_org \
  --header 'Authorization: Token adminadminadmin' \
  --header 'Content-type: application/vnd.flux' \
  --data 'import "influxdata/influxdb/schema"
          schema.fieldKeys(
            bucket: "server_disk",
            start: -100y)'

But this query doesn’t return the field type:

,result,table,_value
,_result,0,free
,_result,0,inodes_free
,_result,0,inodes_total