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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 to_cloudformation(self, **kwargs):
 """Returns the Lambda layer to which this SAM Layer corresponds. :param dict kwargs: already-converted resources that may need to be modified when converting this \ macro to pure CloudFormation :returns: a list of vanilla CloudFormation Resources, to which this Function expands :rtype: list """

        resources = []

        # Append any CFN resources:
        intrinsics_resolver = kwargs["intrinsics_resolver"]
        resources.append(self._construct_lambda_layer(intrinsics_resolver))

        return resources