class Prism::Translation::Parser::Compiler

def visit_keyword_rest_parameter_node(node)

^^
def foo(**); end

^^^^^
def foo(**bar); end 
def visit_keyword_rest_parameter_node(node)
  builder.kwrestarg(
    token(node.operator_loc),
    node.name ? [node.name, srange(node.name_loc)] : nil
  )
end