Is downloadOnly synchronous or asynchronous?

Question

Consider the following line of code Glide.with(getContext()).downloadOnly().load(some_uri).submit();

Question 1) Is it synchronous or asynchronous?

Question 2) If it is synchronous, then how do I make it asynchronous? If it is asynchronous, then how do I make it synchronous?

The question refers to Glide v4

Answer 1

Answering my own question.

Glide.with(getContext()).downloadOnly().load(some_uri).submit();

is async.

Glide.with(getContext()).downloadOnly().load(some_uri).submit().get();

is sync