call_hs_hmrc_ots_with_key_word_search: HMRC OTS query base on key word and HS
In FruzsiG/hmrcwrappER: Mostly painless API calls to the new HMRC API

Querying the HMRC OTS data using HS nomenclature. The arguments are not case-sensitive the API itself is still in BETA thus we continue reporting issues.

call_hs_hmrc_ots_with_key_word_search(
  time_window = NULL,
  key_word = NULL,
  filter_agg = "none",
  country_filter = NULL,
  flow_filter = NULL,
  groupby = NULL
)

`time_window`	like "MonthId gt 202000 and MonthId lt 202100" which is everything from 2020 or "MonthId gt 201908 and MonthId lt 202009" last 12 month up to end of August
`key_word`	anything like "cheese" or "whisky" or "sprout" stick to single words
`filter_agg`	the aggregation level at which you are looking for the keyword like "Cn8" or "hs6"
`country_filter`	use ISO-2-alpha code e.g. "FR" check HMRC for inconsistencies such as former Yugoslavian countries.
`flow_filter`	choose from "export" "import" or "EU"
`groupby`	takes a vector of keywords the full range is c("country", "year", "month", "HS2", "HS4", "HS6", "CN8")

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 call_hs_hmrc_ots_with_key_word_search(filter_agg = "cn8", time_window = "MonthId eq 201901", groupby = c("hs4", "country"))
 call_hs_hmrc_ots_with_key_word_search(key_word = "cheese", filter_agg = "hs4", time_window = "MonthId gt 201906 and MonthId lt 202008", country_filter = "FR", flow_filter = "EXport", groupby = c("CN8", "COUNTRY"))