All library functions no longer require self

crates/lb/src/task.lua

@@ -1,10 +1,3 @@
--- include task functions in the global scope
 local task = require("lb:task")
-
-function sleep(ms)
-  return task:sleep(ms)
-end
-
-function spawn(f, ...)
-  return task:spawn(f, ...)
-end
+sleep = task.sleep
+spawn = task.spawn