'Instantiate a machine_info object.
:param tests: a sequence of test names (as named in the frontend
database) to run for this host
:param kernel_configs: a dictionary of
kernel_version -> config_filename associating kernel
versions with corresponding kernel configuration files
("~" inside the filename will be expanded)'

def __init__(self, tests, kernel_configs):

    self.tests = tests
    self.kernel_configs = kernel_configs
