import * as johnnyDecimal from "https://email@example.com/deps.ts";
Make the text bold.
Ensures that the directory exists.
If the directory structure does not exist, it is created. Like mkdir -p.
Test whether or not the given path exists by checking with the file system.
Set text color to green.
Take a set of command line arguments, optionally with a set of options, and return an object representing the flags found in the passed arguments.
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Walks the file tree rooted at root, yielding each file or directory in the tree filtered according to the given options.