View Source BlueHeron.ATT.ReadByGroupTypeResponse (blue_heron v0.5.3)
The ATT_READ_BY_GROUP_TYPE_RSP PDU is sent in reply to a received ATT_READ_BY_GROUP_TYPE_REQ PDU and contains the handles and values of the attributes that have been read
Bluetooth Spec v5.2, vol 3, Part F, 3.4.4.10