what does the Soothsayer tell Caesar? of which literary technique in this an example?

Is this in Shakespeare's Play "Julius Caesar"?

What literary techniques have you studied? Which do you think it is?

https://www.enotes.com/homework-help/julius-caesar-act-what-does-soothsayer-tell-259388

In Shakespeare's play "Julius Caesar," the Soothsayer tells Caesar, "Beware the ides of March." This is an example of dramatic irony, a literary technique where the audience or reader knows something that the characters in the story do not. In this case, the Soothsayer warns Caesar about the impending danger on the ides of March, March 15th, while Caesar himself remains unaware of the specific threat awaiting him.