usecrate::types::PartialResponse;/// A piece streamed by [`crate::streaming::fetch`].
pubenumPart{/// The header of the response.
////// The `on_data` callback receives this only once.
Response(PartialResponse),/// A single chunk of the response data.
////// If the chunk is empty, that means the `on_data` callback will not receive any more data.
Chunk(Vec<u8>),}