Looks up the record value corresponding to key and invokes got with either that value, if found, or empty data if not found. Should return without calling got if unable to look up the value.
record key
delegate to call back with the value if found
See Implementation
Looks up the record value corresponding to key and invokes got with either that value, if found, or empty data if not found. Should return without calling got if unable to look up the value.