def configure_array(options)
      configured_strategy = options[:merge_array_errors] || StoreModel.config.merge_array_errors

      get_configured_strategy(
        configured_strategy,
        StoreModel::CombineErrorsStrategies::MergeArrayErrorStrategy
      )
    end
Finds a array strategy based on +options+ and global config.

@param options [Hash]

@return [Object] strategy