Function read_with_name 

pub fn read_with_name<D: Storage<DataPoint>, H: Storage<Bytes32>, A: AccessControlRegistry, W: Whitelist<Address = A::Address>>(
    name: Bytes32,
    msg_sender: &A::Address,
    datapoint_storage: &D,
    name_storage: &H,
    access: &A,
    whitelist: &W,
) -> Result<(Int, u32), Error>

Reads the data point with name The read data point may belong to a Beacon or dAPI. The reader must be whitelisted for the hash of the data point name. Returns tuple containing (DataPoint.value, DataPoint.timestamp).

Arguments

• name Data point name
• msg_sender Address of who sent the transaction
• datapoint_storage Data point storage that links datapoint_id to Datapoint
• name_storage Name to Datapoint Id storage used
• access The access control registry used
• whitelist The whitelist implementation used