time_speed = uri_map.uri_to_id("http://lv2plug.in/ns/ext/time#speed");
patch_Get = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#Get");
patch_Set = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#Set");
patch_property = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#property");
patch_value = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#value");
time_speed = uri_map.uri_to_id("http://lv2plug.in/ns/ext/time#speed");
patch_Get = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#Get");
patch_Set = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#Set");
patch_property = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#property");
patch_value = uri_map.uri_to_id("http://lv2plug.in/ns/ext/patch#value");