Function spl_stake_pool::instruction::redelegate

pub fn redelegate(
    program_id: &Pubkey,
    stake_pool: &Pubkey,
    staker: &Pubkey,
    stake_pool_withdraw_authority: &Pubkey,
    validator_list: &Pubkey,
    reserve_stake: &Pubkey,
    source_validator_stake: &Pubkey,
    source_transient_stake: &Pubkey,
    ephemeral_stake: &Pubkey,
    destination_transient_stake: &Pubkey,
    destination_validator_stake: &Pubkey,
    validator: &Pubkey,
    lamports: u64,
    source_transient_stake_seed: u64,
    ephemeral_stake_seed: u64,
    destination_transient_stake_seed: u64
) -> Instruction

Creates Redelegate instruction (rebalance from one validator account to another)