in spectator/common_tags.py [0:0]
def validate_tags(tags: Dict[str, str]) -> Dict[str, str]:
valid_tags = {}
for k, v in tags.items():
if not isinstance(k, str) or len(k) == 0:
continue
if not isinstance(v, str) or len(v) == 0:
continue
valid_tags[k] = v
return valid_tags