Tezos_raw_protocol_alpha.Swrr_samplerval select_bakers_at_cycle_end :
Raw_context.t ->
target_cycle:Cycle_repr.t ->
Raw_context.t Tezos_protocol_environment_alpha.Error_monad.tzresult
Tezos_protocol_environment_alpha.Lwt.tselect_bakers_at_cycle_end ctxt ~target_cycle called to select the bakers at the end of a cycle and it will precompute the list of round 0 bakers for the target_cycle.