Function ergo::ergo_lib_ergo_box_candidate_builder_new

#[no_mangle]
pub unsafe extern "C" fn ergo_lib_ergo_box_candidate_builder_new(
    value_ptr: ConstBoxValuePtr,
    contract_ptr: ConstContractPtr,
    creation_height: u32,
    builder_out: *mut ErgoBoxCandidateBuilderPtr
)

Create builder with required box parameters: value - amount of money associated with the box contract - guarding contract, which should be evaluated to true in order to open(spend) this box creation_height - height when a transaction containing the box is created. It should not exceed height of the block, containing the transaction with this box.