Function invoke_and_read 

pub fn invoke_and_read<T: Projectable, const ACCOUNTS: usize>(
    instruction: &InstructionView<'_, '_, '_, '_>,
    account_views: &[&AccountView<'_>; ACCOUNTS],
    signers_seeds: &[Signer<'_, '_>],
) -> Result<ReturnData, ProgramError>

Invoke a CPI and capture a producer-checked, type-validated return snapshot.

The producing program must equal instruction.program_id. The snapshot must contain an aligned T prefix; trailing bytes are permitted, matching ReturnData::as_type. No data is InvalidAccountData, a different producer is IncorrectProgramId, and a short result is AccountDataTooSmall. Call as_type::<T>() on the returned snapshot to borrow the value.

let snapshot = invoke_and_read::<PriceData, 2>(&instruction, &accounts, &[])?;
let oracle_price = snapshot.as_type::<PriceData>()?;