class RuboCop::Cop::Performance::RedundantMerge

def to_assignments(receiver, pairs)
  pairs.map do |pair|
    key, value = *pair
    key = key.sym_type? && pair.colon? ? ":#{key.source}" : key.source
    format(AREF_ASGN, receiver: receiver.source, key: key, value: value.source)
  end
end