Function spl_token::instruction::burn2

pub fn burn2(
    token_program_id: &Pubkey, 
    account_pubkey: &Pubkey, 
    mint_pubkey: &Pubkey, 
    authority_pubkey: &Pubkey, 
    signer_pubkeys: &[&Pubkey], 
    amount: u64, 
    decimals: u8
) -> Result<Instruction, ProgramError>

Creates a Burn2 instruction.