spec_accessors.md
In artoo: Lossless CDISC-Native Input and Output for Clinical Datasets

spec_codelists() rejects an unknown codelist

Code
  spec_codelists(demo_spec(), "C00000")
Condition
  Error:
  ! `codelist_id` must be a codelist in the spec.
  x "C00000" is not present.
  i Available: "C66731".

spec_study() rejects an unknown field

Code
  spec_study(demo_spec(), "nope")
Condition
  Error:
  ! `field` must be a study-level field.
  x "nope" is not present.
  i Available: "study_name".