Library crashes on Too Many Requests response

[m-aciek]

getUser throws hyperwallet.exceptions.HyperwalletAPIException: Invalid Content-Type specified in Response Header when Hyperwallet server internally returns Too Many Requests.

It could raise some catchable exception instead.

application_1       | Traceback (most recent call last):
application_1       |   File "/usr/local/lib/python3.7/site-packages/hyperwallet/api.py", line 117, in getUser
application_1       |     os.path.join('users', userToken)
application_1       |   File "/usr/local/lib/python3.7/site-packages/hyperwallet/utils/apiclient.py", line 156, in doGet
application_1       |     params=params
application_1       |   File "/usr/local/lib/python3.7/site-packages/hyperwallet/utils/apiclient.py", line 116, in _makeRequest
application_1       |     self.__checkResponseHeaderContentType(response)
application_1       |   File "/usr/local/lib/python3.7/site-packages/hyperwallet/utils/apiclient.py", line 208, in __checkResponseHeaderContentType
application_1       |     raise HyperwalletAPIException('Invalid Content-Type specified in Response Header')
application_1       | hyperwallet.exceptions.HyperwalletAPIException: Invalid Content-Type specified in Response Header