pub fn create_initialize_merkle_tree_instruction(
    payer: Pubkey,
    merkle_tree_pubkey: Pubkey,
    nullifier_queue_pubkey: Pubkey,
    cpi_context_pubkey: Pubkey,
    state_merkle_tree_config: StateMerkleTreeConfig,
    nullifier_queue_config: NullifierQueueConfig,
    program_owner: Option<Pubkey>,
    forester: Option<Pubkey>,
) -> Instruction