Function human_program::create_buy_instruction

pub fn create_buy_instruction(
    program_id: &Pubkey,
    state: &Pubkey,
    token_mint: &Pubkey,
    buyer: &Pubkey,
    buyer_token_acc: &Pubkey,
    owner: &Pubkey,
    treasury: &Pubkey,
    amount: u64,
    expected_price: u64
) -> Result<Instruction, ProgramError>