Retrieval and Streaming

Every verb takes the library's argument struct, so the caller names the inputs with designated initializers. The wrapper fills the handle, executor, arena and outcome slots, runs the call to completion, and returns the verb's first output beside the outcome, while any further output stays a pointer the caller sets in the struct.

namespace us = unum::usearch;
auto [executor, executor_status, executor_message] = us::executor_t::for_ram();
auto [index, index_status, index_message] = us::dense_index_t::init_ram({
    .metric = usearch_dense_metric_angular_k, .quantization = usearch_scalar_bf16_k,
    .dimensions = 256});
auto [arena, arena_status, arena_message] = us::arena_t::make({.executor = executor.handle()});
auto [matches, status, message] = index.search(
    {.count = 1, .queries = {query, 0, 256, usearch_scalar_f32_k}, .wanted = 10}, arena,
    executor);