class RuboCop::Cop::Rails::ReversibleMigration

def reversible_change_table_call?(node)
  case node.method_name
  when :change
    false
  when :remove
    target_rails_version >= 6.1 && all_hash_key?(node.last_argument, :type)
  when :change_default, :change_column_default, :change_table_comment,
       :change_column_comment
    all_hash_key?(node.last_argument, :from, :to)
  else
    true
  end
end