diff --git a/lib/openapi3_parser/nodes/request_body.rb b/lib/openapi3_parser/nodes/request_body.rb
index <HASH>..<HASH> 100644
--- a/lib/openapi3_parser/nodes/request_body.rb
+++ b/lib/openapi3_parser/nodes/request_body.rb
@@ -4,17 +4,21 @@ require "openapi3_parser/node/object"
 
 module Openapi3Parser
   module Nodes
+    # @see https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#requestBodyObject
     class RequestBody
       include Node::Object
 
+      # @return [String, nil]
       def description
         node_data["description"]
       end
 
+      # @return [Map] a map of String: {MediaType}[./MediaType.html] objects
       def content
         node_data["content"]
       end
 
+      # @return [Boolean]
       def required?
         node_data["required"]
       end
Documentation for RequestBody node