RDF.Literal.Datatype.canonical-question-mark

You're seeing just the callback canonical-question-mark, go back to RDF.Literal.Datatype module for more information.

Specs

canonical?(RDF.Literal.t() | literal() | any()) :: boolean()

Determines if the lexical form of a RDF.Literal is the canonical form.

Note: For RDF.Literal.Generic literals with the canonical form not defined, this always returns true.