The data_extract_ui is located under extended html id. We could not use ns("original id")
for reference, as it is extended with specific suffixes.
extract_input(varname, dataname, filter = FALSE)(character)
the original html id. This should be retrieved with ns("original id") in the UI function
or session$ns("original id")/"original id" in the server function.
(character)dataname from data_extract input.
This might be retrieved like data_extract_spec(...)[[1]]$dataname.
(logical) optional,
if the connected extract_data_spec has objects passed to its filter argument
a string
extract_input("ARM", "ADSL")
#> [1] "ARM-dataset_ADSL_singleextract-select"