boto3_example.py

secrets_list = []
response = self._lambda_client.list_secrets()

for secrets_dict in response['SecretList']:
    secrets_list.append(secrets_dict)
while "NextMarker" in response:
    response = self._lambda_client.list_secrets(
        Marker=response["NextMarker"])
    for secrets_dict in response['SecretList']:
        secrets_list.append(secrets_dict)

for item in secrets_list:
    if key in item:
        detail_response = self._lambda_client.describe_secret(
            SecretId=item['ARN'])