openAI.createFile doesn't exist right?

[Suddenfury]

I'm new to git and kotlin (and Android studio), but here

Create assistant file

Create an assistant file by attaching a File to an assistant.

val assistant = openAI.createFile(
assistantId = AssistantId("asst_abc123"),
fileId = FileId("file_abc123")
)

im quite sure createFile() doesn't really exist.