Function spl_stake_pool::instruction::decrease_validator_stake

pub fn decrease_validator_stake(
    program_id: &Pubkey, 
    stake_pool: &Pubkey, 
    staker: &Pubkey, 
    stake_pool_withdraw_authority: &Pubkey, 
    validator_list: &Pubkey, 
    validator_stake: &Pubkey, 
    transient_stake: &Pubkey, 
    lamports: u64
) -> Instruction

Creates DecreaseValidatorStake instruction (rebalance from validator account to transient account)