Prism::WhenNode#copy

# File tmp/rubies/ruby-3.3.0/lib/prism/node.rb, line 16807
def copy(**params)
  WhenNode.new(
    params.fetch(:keyword_loc) { keyword_loc },
    params.fetch(:conditions) { conditions },
    params.fetch(:statements) { statements },
    params.fetch(:location) { location },
  )
end