How do you define ‘cosmopolitanism’ and apply this definition as a lens to interpret Ghosh’s novel.

(1000 words, not including references)
Define cosmopolitanism, in your own words/ terms. Then, apply your definition of cosmopolitanism in a close reading of Amitav Ghosh’s The Shadow Lines.
The main question that the essay should ask and answer is:
“How do you define ‘cosmopolitanism’ and apply this definition as a lens to interpret Ghosh’s novel.