Patch to add keyword arguments to Sexp shortcuts.

add_keyword_args_to_sexp_shortcuts.patch

diff --git a/lib/bel_parser/parsers/ast/node.rb b/lib/bel_parser/parsers/ast/node.rb
index 18dfb81..fabd143 100644
--- a/lib/bel_parser/parsers/ast/node.rb
+++ b/lib/bel_parser/parsers/ast/node.rb
@@ -823,83 +823,83 @@ module BELParser
       #
       # @see https://en.wikipedia.org/wiki/S-expression S-expression
       module Sexp
-        def nested_statement(*children)
+        def nested_statement(*children, **properties)
           NestedStatement.new(children)
         end
 
-        def simple_statement(*children)
+        def simple_statement(*children, **properties)
           SimpleStatement.new(children)
         end
 
-        def observed_term(*children)
+        def observed_term(*children, **properties)
           ObservedTerm.new(children)
         end
 
-        def statement(*children)
+        def statement(*children, **properties)
           Statement.new(children)
         end
 
-        def subject(*children)
+        def subject(*children, **properties)
           Subject.new(children)
         end
 
-        def object(*children)
+        def object(*children, **properties)
           Object.new(children)
         end
 
-        def relationship(*children)
+        def relationship(*children, **properties)
           Relationship.new(children)
         end
 
-        def term(*children)
+        def term(*children, **properties)
           Term.new(children)
         end
 
-        def function(*children)
+        def function(*children, **properties)
           Function.new(children)
         end
 
-        def argument(*children)
+        def argument(*children, **properties)
           Argument.new(children)
         end
 
-        def parameter(*children)
+        def parameter(*children, **properties)
           Parameter.new(children)
         end
 
-        def prefix(*children)
+        def prefix(*children, **properties)
           Prefix.new(children)
         end
 
-        def name(*children)
+        def name(*children, **properties)
           Name.new(children)
         end
 
-        def value(*children)
+        def value(*children, **properties)
           Value.new(children)
         end
 
-        def identifier(*children)
-          Identifier.new(children)
+        def identifier(*children, **properties)
+          Identifier.new(children, properties)
         end
 
-        def string(*children)
+        def string(*children, **properties)
           String.new(children)
         end
 
-        def list(*children)
+        def list(*children, **properties)
           List.new(children)
         end
 
-        def list_item(*children)
+        def list_item(*children, **properties)
           ListItem.new(children)
         end
 
-        def comment(*children)
+        def comment(*children, **properties)
           Comment.new(children)
         end
 
-        def comment_line(*children)
+        def comment_line(*children, **properties)
           CommentLine.new(children)
         end
 
@@ -907,35 +907,35 @@ module BELParser
           BlankLine.new
         end
 
-        def set(*children)
+        def set(*children, **properties)
           Set.new(children)
         end
 
-        def document_property(*children)
+        def document_property(*children, **properties)
           DocumentProperty.new(children)
         end
 
-        def annotation_definition(*children)
+        def annotation_definition(*children, **properties)
           AnnotationDefinition.new(children)
         end
 
-        def namespace_definition(*children)
+        def namespace_definition(*children, **properties)
           NamespaceDefinition.new(children)
         end
 
-        def keyword(*children)
+        def keyword(*children, **properties)
           Keyword.new(children)
         end
 
-        def domain(*children)
+        def domain(*children, **properties)
           Domain.new(children)
         end
 
-        def url(*children)
+        def url(*children, **properties)
           Url.new(children)
         end
 
-        def pattern(*children)
+        def pattern(*children, **properties)
           Pattern.new(children)
         end
       end