Prism::DotVisitor#visit_program_node

# File tmp/rubies/ruby-4.0.0/lib/prism/dot_visitor.rb, line 3751
    def visit_program_node(node)
      table = Table.new("ProgramNode")
      id = node_id(node)

      # locals
      table.field("locals", node.locals.inspect)

      # statements
      table.field("statements", port: true)
      digraph.edge("#{id}:statements -> #{node_id(node.statements)};")

      digraph.nodes << <<~DOT
        #{id} [
          label=<#{table.to_dot.gsub(/\n/, "\n  ")}>
        ];
      DOT

      super
    end