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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 item_properties(self, handle):
 """Return properties of the item with the given handle."""

        logger.debug("Getting properties for handle: {}".format(handle))
        properties = {
            'size_in_bytes': self.get_size_in_bytes(handle),
            'utc_timestamp': self.get_utc_timestamp(handle),
            'hash': self.get_hash(handle),
            'relpath': self.get_relpath(handle)
        }
        logger.debug("{} properties: {}".format(handle, properties))
        return properties