How do I get warden

I see youtubers already being able to summon the warden. Can I do it too? If yes, how?

you have to be on the snapshot versions

in your launcher, just start a new installation version and pick latest snapshot(it should already be there by default)

oh then there will be a warden spawn egg?

step 1 update yourself 

warden available in 1.19 and allay 

I would prefer a much more detailed explanation like garfield mr beluga

depends 

are yuh playing in cracked or in uncracked version?

uncracked

is it in bedrock version yet?