Function build_list_write_chunks 

pub fn build_list_write_chunks(
    path: AttributePath,
    element_tlvs: &[Vec<u8>],
    budget: usize,
    timed: bool,
) -> Vec<Vec<u8>>

Build one or more WriteRequestMessages that write element_tlvs (each a pre-encoded anonymous-tagged list element) to path as a list, splitting across messages so each stays within budget unencrypted bytes.

Chunk 0 is a ReplaceAll (path without ListIndex; Data = an array of the elements that fit). Remaining elements are emitted as AppendItem IBs (path with ListIndex=null).

When the write fits a single message, the result is one ReplaceAll with MoreChunkedMessages (ctx3) omitted entirely — byte-identical to build_write_request(&[AttributeWriteRequest{path, value_tlv: <the full array encoded>}]).

When the write spans multiple messages, MoreChunkedMessages is encoded explicitly on every chunk: true on all but the last, and an explicit false on the last. This is required for chip interop: chip’s WriteHandler::ProcessWriteRequest (connectedhomeip src/app/WriteHandler.cpp:649-656) initializes its parsed MoreChunkedMessages from the previous chunk’s stored state before attempting to read the field, so an absent field on the final chunk silently inherits true from chunk N-1 and the device never considers the write transaction finished. Only the single-message (no-chunking) shape omits the field, matching build_write_request.

An empty element_tlvs yields a single empty-array ReplaceAll.