All chains
    Preparing search index...
    session_info: RuntimeDescriptor<
        [index: number],

            | {
                active_validator_indices: number[];
                assignment_keys: FixedSizeBinary<32>[];
                discovery_keys: FixedSizeBinary<32>[];
                dispute_period: number;
                n_cores: number;
                n_delay_tranches: number;
                needed_approvals: number;
                no_show_slots: number;
                random_seed: FixedSizeBinary<32>;
                relay_vrf_modulo_samples: number;
                validator_groups: number[][];
                validators: FixedSizeBinary<32>[];
                zeroth_delay_tranche_width: number;
            }
            | undefined,
    >

    Get the session info for the given session, if stored.

    NOTE: This function is only available since parachain host version 2.