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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 _update_to_s3_uri(property_key, resource_property_dict, s3_uri_value="s3://bucket/value"):
 """ Updates the 'property_key' in the 'resource_property_dict' to the value of 's3_uri_value' Note: The function will mutate the resource_property_dict that is pass in Parameters property_key str, required Key in the resource_property_dict resource_property_dict dict, required Property dictionary of a Resource in the template to replace s3_uri_value str, optional Value to update the value of the property_key to """

        uri_property = resource_property_dict.get(property_key, ".")

        # ignore if dict or already an S3 Uri
        if isinstance(uri_property, dict) or SamTemplateValidator.is_s3_uri(uri_property):
            return

        resource_property_dict[property_key] = s3_uri_value