def read_line(self, line):
        directive, arguments = line.split(':', 1)
        arguments = [a.strip() for a in arguments.split('->')]
        self.read_directive(directive.strip(), *arguments)
Read in a single line and return a (directive, arguments) tuple
dataset/ETHPy150Open borntyping/spotter/spotter/watches.py/WatchFile.read_line