Type
Any type in Kotlin's type system. This class identifies simple types like Int and String, nullable types like Int?, composite types like Array<String> and Set<String>, and unassignable types like Unit.
Type names are dumb identifiers only and do not model the values they name. For example, the type name for kotlin.List doesn't know about the size() function, the fact that lists are collections, or even that it accepts a single type parameter.
Instances of this class are immutable value objects that implement equals() and hashCode() properly.
Referencing existing types
--------------------------In an annotation processor you can get a type name instance for a type mirror by calling asTypeName. In reflection code, you can use asTypeName.
Defining new types
------------------Create new reference types like com.example.HelloWorld with ClassName.bestGuess. To build composite types like Set<Long>, use the factory methods on ParameterizedTypeName, TypeVariableName, and WildcardTypeName.