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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def build_request_include(include, params):
 """Augment request parameters with includes. When one or all resources are requested an additional set of resources can be requested as part of the request. This function extends the given parameters for a request with a list of resource types passed in as a list of :class:`Resource` subclasses. Args: include([Resource class]):
 A list of resource classes to include params(dict):
 The (optional) dictionary of request parameters to extend Returns: An updated or new dictionary of parameters extended with an include query parameter. """

    params = params or OrderedDict()
    if include is not None:
        params['include'] = ','.join([cls._resource_type() for cls in include])
    return params