Question: Write a function removeDuplicates(filename) which remove duplicate lines from the file with the given name and writes the output to a file called output.txt. Among

Write a function removeDuplicates(filename) which remove duplicate lines from the file with the given name and writes the output to a file called "output.txt". Among the duplicate lines, the resulting file should only keep the one that appears first in the original file.

Please give me in python

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