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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 copy_assets(self, path='assets'):
 		""" 		Copy assets into the destination directory. 		"""

		path = os.path.join(self.root_path, path)
		for root, _, files in os.walk(path):
			for file in files:
				fullpath = os.path.join(root, file)
				relpath = os.path.relpath(fullpath, path)
				copy_to = os.path.join(self._get_dist_path(relpath, directory='assets'))
				LOG.debug('copying %r to %r', fullpath, copy_to)
				shutil.copyfile(fullpath, copy_to)