Function solana_stake_program::stake_state::redelegate

pub fn redelegate(
    invoke_context: &InvokeContext<'_>,
    transaction_context: &TransactionContext,
    instruction_context: &InstructionContext,
    stake_account: &mut BorrowedAccount<'_>,
    uninitialized_stake_account_index: usize,
    vote_account_index: usize,
    config: &Config,
    signers: &HashSet<Pubkey>
) -> Result<(), InstructionError>