Fix missing documentation.

Author: samuel-williams-shopify

lib/async/list.rb

@@ -18,6 +18,7 @@ def to_s
 			sprintf("#<%s:0x%x size=%d>", self.class.name, object_id, @size)
 		end
 
+		# @returns [String] A short summary of the list.
 		alias inspect to_s
 
 		# Fast, safe, unbounded accumulation of children.
@@ -238,6 +239,12 @@ class Node
 			attr_accessor :head
 			attr_accessor :tail
 
+			# @returns [String] A string representation of the node.
+			def to_s
+				sprintf("#<%s:0x%x>", self.class.name, object_id)
+			end
+			
+			# @returns [String] A string representation of the node.
 			alias inspect to_s
 		end
 

lib/async/node.rb

@@ -180,6 +180,7 @@ def to_s
 			"\#<#{self.description}>"
 		end
 
+		# @returns [String] A description of the node.
 		alias inspect to_s
 
 		# Change the parent of this node.

lib/async/queue.rb

@@ -147,6 +147,8 @@ def initialize(limit = 1, full: Notification.new, **options)
 		# @attribute [Integer] The maximum number of items that can be enqueued.
 		attr :limit
 
+		# Close the queue, causing all waiting tasks to return `nil`. Any subsequent calls to {enqueue} will raise an exception.
+		# Also signals all tasks waiting for the queue to be full.
 		def close
 			super
 

lib/async/scheduler.rb

@@ -591,6 +591,8 @@ def async(*arguments, **options, &block)
 			return task
 		end
 
+		# Create a new fiber and return it without starting execution.
+		# @returns [Fiber] The fiber that was created.
 		def fiber(...)
 			return async(...).fiber
 		end