ParameterizedTypeName

class ParameterizedTypeName : TypeName

optional	`val optional: Boolean`
rawType	`val rawType: DeclaredTypeName`
typeArguments	`val typeArguments: List<TypeName>`

makeNonOptional	`fun makeNonOptional(): TypeName`
makeOptional	`fun makeOptional(): ParameterizedTypeName`
nestedType	Returns a new ParameterizedTypeName instance for the specified `name` as nested inside this type, with the specified `typeArguments`. `fun nestedType(name: String, typeArguments: List<TypeName>): ParameterizedTypeName`
unwrapOptional	`fun unwrapOptional(): TypeName`