class Prism::BlockArgumentNode

def inspect(inspector = NodeInspector.new)
  inspector << inspector.header(self)
  if (expression = self.expression).nil?
    inspector << "├── expression: ∅\n"
  else
    inspector << "├── expression:\n"
    inspector << expression.inspect(inspector.child_inspector("│   ")).delete_prefix(inspector.prefix)
  end
  inspector << "└── operator_loc: #{inspector.location(operator_loc)}\n"
  inspector.to_str
end