How to check for proper format in my API response - rest

Question

Currently running tests for my REST API which:
takes an endpoint from the user
using that endpoint, grabs info from a server
sends it to another server to be translated
then proceeds to jsonify the data.
I've written a series of automated tests running and I cannot get one to pass - the test that actually identifies the content of the response. I've tried including several variations of what the test is expecting but I feel it's the actual implementation that's the issue. Here's the expected API response from the client request:
{ "name": "random_character", "description": "Translated description of requested character is output here" }
Here is the testing class inside my test_main.py:
class Test_functions(unittest.TestCase):
# checking if response of 200 is returned
def test_healthcheck_PokeAPI(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/")
status_code = response.status_code
self.assertEqual(status_code, 200)
# the status code should be a redirect i.e. 308; so I made a separate test for this
def test_healthcheck_ShakesprAPI(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/charizard")
self.assertEqual(response.status_code, 308)
def test_response_content(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/charizard")
self.assertEqual(response.content_type,
'application/json') <<<< this test is failing
def test_trans_shakespeare_response(self):
manualtest = app.test_client(self)
response = manualtest.get("/pokemon/charizard")
self.assertFalse(b"doth" in response.data)
Traceback:
AssertionError: 'text/html; charset=utf-8' != 'application/json' - text/html; charset=utf-8 + application/json
Any help would be greatly appreciated