HttpHeaders.opApply
int opApply(scope int delegate(const string name, const string value) dg) constForeach iteration over every stored (name, value) pair; a name with several values yields one iteration per value.
int opApply(scope int delegate(const string name, const string value) dg) constForeach iteration over every stored (name, value) pair; a name with several values yields one iteration per value.