AWS Iot 1-Click Event - CloudFormation template (YAML)

template.yml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Resources:
  MyClickFunction:
    Type: AWS::Serverless::Function
    Properties:
      Handler: index.handler
      Runtime: python2.7
      # ... 
      # all the other properties here
      # ... 
  MyIoT1ClickProject:
    Type: AWS::IoT1Click::Project
    Properties:
      ProjectName: MyProjectName
      PlacementTemplate:
        DeviceTemplates:
          myTemplateName:
            DeviceType: button
            CallbackOverrides:
              onClickCallback: !GetAtt MyClickFunction.Arn