pan class='period'>.</span><span class='id identifier rubyid_underscore'>underscore</span><span class='comma'>,</span> <span class='id identifier rubyid_family_name_for'>family_name_for</span><span class='lparen'>(</span><span class='id identifier rubyid_model_or_family_name_or_cst'>model_or_family_name_or_cst</span><span class='rparen'>)</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_compact'>compact</span><span class='period'>.</span><span class='id ide