dlmtd_new()instantiates a newdlmtdnode.dlmtd_type()checks if the node is adlmtdnode.dlmtd_<child>_get()returns the<child>node ofdlmtd.dlmtd_<child>_set()sets the new<child>and deletes the old<child>.dlmtd_<child>_rep()sets the new<child>and returns the old<child>.