in src/utils/dynamodb.py [0:0]
def convert_empty_values(d):
for k in d:
if isinstance(d[k], dict):
convert_empty_values(d[k])
elif isinstance(d[k], list):
for i in d[k]:
if isinstance(i, list) or isinstance(i, dict):
convert_empty_values(i)
elif d[k] == "":
d[k] = None
return d