With the following serverless.yml file:
```yml
service: localtest

provider:
  name: aws
  runtime: nodejs10.x

functions:
  hello:
    handler: handler.hello
    events:
    - stream:
        type: dynamodb
        arn:
          Fn::GetAtt: [fooTable, StreamArn]

resources:
  Resources:
    fooTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: fooTable
        AttributeDefinitions:
          - AttributeName: foo
            AttributeType: S
        KeySchema:
          - AttributeName: foo
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        StreamSpecification:
          StreamViewType: NEW_AND_OLD_IMAGES

plugins:
- "serverless-localstack"

custom:
  localstack:
    stages:
      - "local"
```
It fails with a generic error (500) on the deployment end and with `:ERROR:localstack.services.cloudformation.cloudformation_starter: Unable to parse and create resource "HelloEventSourceMappingDynamodbFooTable": 'NoneType' object has no attribute 'function_arn'` on the localstack end.
It deploys fine to AWS.
""" Parse the body of an HTTP message transmitted with chunked transfer encoding. """
    data = (data or '').strip()
    chunks = []
    while data:
        length = re.match(r'^([0-9a-zA-Z]+)\r\n.*', data)
        if not length:
            break
        length = length.group(1).lower()
        length = int(length, 16)
        data = data.partition('\r\n')[2]
        chunks.append(data[:length])
        data = data[length:].strip()
    return ''.join(chunks)
def is_number(s):