Method with_assert_byte_controller

modules/llrt_stream_web/src/readable/objects.rs:103–113

(
        mut self,
        f: impl FnOnce(ReadableByteStreamObjects<'js, R>) -> Result<ReadableByteStreamObjects<'js, R>>,
    )

    }

    pub(super) fn with_assert_byte_controller(
        mut self,
        f: impl FnOnce(ReadableByteStreamObjects<'js, R>) -> Result<ReadableByteStreamObjects<'js, R>>,
    ) -> Result<Self> {
        ((), self) = self.with_controller(
            (),
            |_, _| panic!("expected byte controller, found default controller"),
            |(), controller| Ok(((), f(controller)?)),
        )?;
        Ok(self)
    }

    pub(super) fn with_controller<Ctx, O>(
        self,