I know there's a simple way of doing this but right now I don't know how to do it. I've a file which looks as follows:

numbers=1234
MULTILINE = """
long text here,
e.g. a private SSH key
"""
SIMPLE=xyz123

What I want to do is to read this file and get back an array that looks as follows:

["numbers", "MULTILINE", "SIMPLE"]

How can I do this?