Write a function file_copy that takes two string parameters (in_file and out file) and copies the content of in_file into out_file. Assume that in_file exists before file_copy is called. For example, the following would be correct input and output: >>> file_copy('created_equal.txt', 'copy.txt') >>> copy_f = open('copy.txt') >>> copy_f.read() "We hold these truths to be self-evident, that all men are created equal '