class Prism::DotVisitor

def visit_required_parameter_node(node)

Visit a RequiredParameterNode node. 
def visit_required_parameter_node(node)
  table = Table.new("RequiredParameterNode")
  id = node_id(node)
  # flags
  table.field("flags", parameter_flags_inspect(node))
  # name
  table.field("name", node.name.inspect)
  digraph.nodes << <<~DOT
    #{id} [
      label=<#{table.to_dot.gsub(/\n/, "\n  ")}>
    ];
  DOT
  super
end