Untitled-1

AWSTemplateFormatVersion: '2010-09-09'
Resources:
MyStepFunctionStateMachine:
    Type: AWS::StepFunctions::StateMachine
    Properties:
    DefinitionString: 
        Fn::Sub:
        - |
        {
            "Comment": "A description of my state machine",
            "StartAt": "CopyObject",
            "States": {
              "CopyObject": {
                "Type": "Task",
                "End": true,
                "Parameters": {
                  "Bucket": "MyData",
                  "CopySource": "MyData",
                  "Key": "MyData"
                },
                "Resource": "arn:aws:states:::aws-sdk:s3:copyObject"
              }
            }
          }
        - { REGION: "us-east-1", ACCOUNT_ID: "123456789012" }