i><p><strong>load_style</strong>: The atomman.load() style indicating the format of the
load_file.</p></li>
<li><p><strong>load_options</strong>: A space-delimited list of key-value pairs for
optional style-specific arguments used by atomman.load().</p></li>
<li><p><strong>family</strong>: A metadata descriptor for relating the load_file back to
the original crystal structure or prototype that the load_file was
based on. If not given, will use the family field in load_file if
load_style is ‘system_model�