usepubky_common::crypto::Keypair;/// The deterministic keypair used by all testnets (static, ephemeral, and base).
/// Produces pubkey `8pinxxgqs41n4aididenw5apqp1urfmzdztr8jt4abrkdn435ewo`.
pub(crate)fntestnet_keypair()-> Keypair{Keypair::from_secret(&[0;32])}