RDF.LangString.new

You're seeing just the function new, go back to RDF.LangString module for more information.
Link to this function

new(value, language_or_opts \\ [])

View Source

Specs

new(any(), String.t() | atom() | keyword()) :: RDF.Literal.t()

Creates a new RDF.Literal with this datatype and the given value and language.