Function decode_and_render 

pub fn decode_and_render(
    buf: &[u8],
    schema: Option<&ParsedSchema>,
    annotations: bool,
    indent_size: usize,
    expand_any: bool,
) -> Vec<u8> 

Decode raw protobuf binary and render as protoc-style text in one pass.

Writes field lines into a pre-allocated Vec<u8>. When annotations is true, a #@ prototext: protoc\n header is prepended; without annotations the header is omitted (encode is not possible without field annotations regardless).

Parameters mirror format_as_text in lib.rs.