Function spl_token::instruction::close_account

pub fn close_account(
    token_program_id: &Pubkey, 
    account_pubkey: &Pubkey, 
    dest_pubkey: &Pubkey, 
    authority_pubkey: &Pubkey, 
    signer_pubkeys: &[&Pubkey]
) -> Result<Instruction, ProgramError>

Creates a CloseAccount instruction.