In the story The story of an hour what is the dramatic irony that closes the story and how does it express the authors theme

Kate Chopin's "The Story of an Hour" is a masterpiece of the literary technique of irony; even the title is ironic in that so much that is unexpected happens in the life of Louise Mallard in just sixty minutes. Here are other examples of the three types of irony:

Situational Irony

Since irony always involves an incongruity, this type of irony is one in which the expectation and the fulfillment are not what is expected ...