contains$QMARK_ function
Implementation
dc.bool contains$QMARK_(dc.dynamic coll$1, dc.dynamic key$1, ){
final dc.dynamic o7778$1=coll$1;
final dc.dynamic k7779$1=key$1;
if((o7778$1 is lcoc_core.ILookup$iface)){
return ((o7778$1 as lcoc_core.ILookup$iface).$_contains_key$QMARK_$1(k7779$1, ));
}
return ((lcoc_core.ILookup.extensions(o7778$1, ) as lcoc_core.ILookup$ext).$_contains_key$QMARK_$1(o7778$1, k7779$1, ));
}