Create new object from CFN Yaml definition

[JohnPreston]

Hello. It is a question rather than an issue but unsure where to ask. Basically, let's assume we have a YAML document somewhere and we want to integrate the CFN object it represents into a troposphere object.

If that object has a complex structure with various types expected, it doesn't work. So not sure how we could achieve the above.

Here is a snippet of what I would like to do.

  Properties:
    AttributeDefinitions:
      - AttributeName: "currencyId"
        AttributeType: "N"
      - AttributeName: "currencyName"
        AttributeType: "S"
    KeySchema:
      - AttributeName: "currencyId"
        KeyType: "HASH"
      - AttributeName: "currencyName"
        KeyType: "RANGE"
    ProvisionedThroughput:
      ReadCapacityUnits: "5"
      WriteCapacityUnits: "5"
    TableName: "OreoCurrency"

and the python for it that I hoped would work is

import yaml
content = yaml.load(<ABOVE CONTENT>)
from troposphere.dynamodb import Table
table = Table('sometable', **content['SomeTable']['Properties'])

At the moment I get

>>> table = Table('hello', **dict_['SomeTable']['Properties'])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/john/.venv/lib64/python3.7/site-packages/troposphere/__init__.py", line 127, in __init__
    self.__setattr__(k, v)
  File "/home/john/.venv/lib64/python3.7/site-packages/troposphere/__init__.py", line 204, in __setattr__
    self._raise_type(name, v, expected_type)
  File "/home/john/.venv/lib64/python3.7/site-packages/troposphere/__init__.py", line 232, in _raise_type
    expected_type))
TypeError: <class 'troposphere.dynamodb.Table'>: hello.AttributeDefinitions is <class 'dict'>, expected [<class 'troposphere.dynamodb.AttributeDefinition'>]

Many thanks :)