dynamodb specifiction in cloudformation or sam

dynamodbCloudformationTemplate.yaml

MainDatabase:
    Type: AWS::DynamoDB::Table
    Properties: 
      AttributeDefinitions: 
        - AttributeName: ib_prcode
          AttributeType: S
        - AttributeName: needUpdate
          AttributeType: S
      BillingMode: PAY_PER_REQUEST
      GlobalSecondaryIndexes:
        - IndexName: "need-update"
          KeySchema:
            - AttributeName: needUpdate
              KeyType: HASH
          Projection:
            ProjectionType: ALL
      KeySchema: 
        - AttributeName: ib_prcode
          KeyType: HASH
      PointInTimeRecoverySpecification:
        PointInTimeRecoveryEnabled: true
      TableName: !Join [ "-" , ["inventory-database", !Ref BRANCH]]