Tezos_raw_protocol_017_PtNairob.Dal_servicesval shards :
Alpha_context.t ->
level:Alpha_context.Raw_level.t ->
(Tezos_protocol_environment_017_PtNairob.Signature.Public_key_hash.t
* (int * int))
list
Tezos_protocol_environment_017_PtNairob.Error_monad.tzresult
Tezos_protocol_environment_017_PtNairob.Lwt.tshards ctxt ~level returns the DAL committee as an association list that associates to the public key hash pkh of the member of the committee an interval (s,n), meaning that the slots s;s+1;...;s+n-1 belongs to pkh. It is guaranteed that n>0.