Helper to make a new DDI structure (not very useful for end-users).
make_ddi_from_scratch(
file_name = NULL,
file_path = NULL,
file_type = NULL,
ipums_project = NULL,
extract_date = NULL,
extract_notes = NULL,
rectypes = NULL,
rectype_idvar = NULL,
rectypes_keyvars = NULL,
var_info = NULL,
conditions = NULL,
citation = NULL,
file_encoding = NULL
)