# File lib/fog/aws/requests/emr/add_instance_groups.rb, line 23 def add_instance_groups(job_flow_id, options={}) if instance_groups = options.delete('InstanceGroups') options.merge!(Fog::AWS.indexed_param('InstanceGroups.member.%d', [*instance_groups])) end request({ 'Action' => 'AddInstanceGroups', 'JobFlowId' => job_flow_id, :parser => Fog::Parsers::AWS::EMR::AddInstanceGroups.new, }.merge(options)) end