Queries of the “column” field on “boards” take the argument of boards(columns(ids: [String!])) however the Column object id field is of type ID! according to the schema.
while its essentially moot, since ID in a column is always a string. But inconsistencies like this make writing queries using variables a bit more painful since all IDs should be of type ID including when used as arguments (as is the case for boards(ids: [ID!]))
of course someone will gripe that fixing this will create a breaking change in the next API where queries need to get updated…