```ruby
# frozen_string_literal: true

require 'active_record/connection_adapters/abstract_mysql_adapter'

module Ridgepole
  module Ext
    module AbstractMysqlAdapter
      module UseAlterIndex
        def add_index(table_name, column_name, options = {})
          index_name, index_type, index_columns, index_options, _index_algorithm, index_using = add_index_options(table_name, column_name, options)

          # cannot specify index_algorithm
          execute "ALTER TABLE #{quote_table_name(table_name)} ADD #{index_type} INDEX #{quote_column_name(index_name)} #{index_using} (#{index_columns})#{index_options}"
        end

        def remove_index(table_name, options)
          index_name = index_name_for_remove(table_name, options)
          execute "ALTER TABLE #{quote_table_name(table_name)} DROP INDEX #{quote_column_name(index_name)}"
        end
      end
    end
  end
end

module ActiveRecord
  module ConnectionAdapters
    class AbstractMysqlAdapter
      prepend Ridgepole::Ext::AbstractMysqlAdapter::UseAlterIndex
    end
  end
end
```

Fix pass hash to last argument as keyword
user
```ruby
# frozen_string_literal: true

require 'active_record/connection_adapters/abstract_mysql_adapter'

module Ridgepole
  module Ext
    module AbstractMysqlAdapter
      module UseAlterIndex
        def add_index(table_name, column_name, options = {})
          index_name, index_type, index_columns, index_options, _index_algorithm, index_using = add_index_options(table_name, column_name, **options)

          # cannot specify index_algorithm
          execute "ALTER TABLE #{quote_table_name(table_name)} ADD #{index_type} INDEX #{quote_column_name(index_name)} #{index_using} (#{index_columns})#{index_options}"
        end

        def remove_index(table_name, options)
          index_name = index_name_for_remove(table_name, options)
          execute "ALTER TABLE #{quote_table_name(table_name)} DROP INDEX #{quote_column_name(index_name)}"
        end
      end
    end
  end
end

module ActiveRecord
  module ConnectionAdapters
    class AbstractMysqlAdapter
      prepend Ridgepole::Ext::AbstractMysqlAdapter::UseAlterIndex
    end
  end
end
```
assistant