faostat_resolve_codes

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Resolve human terms to the opaque integer codes faostat_query_observations needs, within a dimension: areas (countries/regions), items (commodities), or elements (metrics like production, yield, import quantity). Pass `query` for fuzzy full-text matching ("maize" → item 56), `name_contains` for a substring filter, or `code` for an exact-code lookup; omit all three to list the whole dimension. Item and element results are scoped to the requested domain — only codes present in that domain's cube are returned, so a resolved code is always queryable there (areas are shared across domains). Page large listings with `offset` + `limit`: when the response reports `truncated`, pass the returned `nextOffset` to fetch the next page. Every area match is flagged `country` or `aggregate` — aggregates (World, continents, economic groupings — codes ≥ 5000 plus a few curated sub-threshold roll-ups such as China=351, which sums mainland + Taiwan + Hong Kong + Macao) double-count if summed with their member countries, so resolve before querying and exclude aggregates unless you want the regional roll-up.