ction(t){lt||(c(),lt=!0),t.l_desc=new r(t.dyn_ltree,rt),t.d_desc=new r(t.dyn_dtree,st),t.bl_desc=new r(t.bl_tree,ot),t.bi_buf=0,t.bi_valid=0,b(t)},a._tr_stored_block=E,a._tr_flush_block=function(t,e,a,i){var n,r,s=0;t.level>0?(t.strm.data_type===N&&(t.strm.data_type=S(t)),k(t,t.l_desc),k(t,t.d_desc),s=z(t),n=t.opt_len+3+7>>>3,(r=t.static_len+3+7>>>3)<=n&&(n=r)):n=r=a+5,a+4<=n&&-1!==e?E(t,e,a,i):t.strategy===Z||r===n?(l(t,(D<<1)+(i?1:0),3),v(t,$,tt)):(l(t,(I<<1)+(i?1:0),3),B(t,t.l_desc.max_code+1...