def _cast_proparties(self, value: Any, schema_only: bool = False) -> Any:
        if not isinstance(value, dict):
>           raise CastError(value, self.schema["type"])
E           openapi_core.casting.schemas.exceptions.CastError: Failed to cast value to object type: b'\n    \n        \n        \n        {"entry":[{"fullUrl":"https://internal-dev.api.service.nhs.uk/validated-relationships/FHIR/R4/RelatedPerson/47CD795E","resource":{"id":"47CD795E","identifier":[{"system":"https://fhir.nhs.uk/Id/nhs-number","value":"9730675929"}],"patient":{"identifier":{"system":"https://fhir.nhs.uk/Id/nhs-number","value":"9730676399"},"type":"Patient"},"relationship":[{"coding":[{"code":"MTH","display":"mother","system":"http://terminology.hl7.org/CodeSystem/v3-RoleCode"}]}],"resourceType":"RelatedPerson"},"search":{"mode":"match"}}],"link":[{"relation":"self","url":"https://internal-dev.api.service.nhs.uk/validated-relationships-service-api/FHIR/R4/RelatedPerson?identifier=9730675929&patient%3Aidentifier=9730676399"}],"timestamp":"2024-04-23T17:01:35+00:00","total":1,"type":"searchset","resourceType":"Bundle"}\n'

../../../../../Library/Caches/pypoetry/virtualenvs/tests-puqZLLMN-py3.9/lib/python3.9/site-packages/openapi_core/casting/schemas/casters.py:114: CastError

    openapi_response = RequestsOpenAPIResponse(api_response)
    openapi_request = RequestsOpenAPIRequest(api_response.request)
    openapi.validate_response(openapi_request, openapi_response)

(Pdb) type(api_response)
<class 'requests.models.Response'>
(Pdb) api_response.content
b'\n    \n        \n        \n        {"entry":[{"fullUrl":"https://internal-dev.api.service.nhs.uk/validated-relationships/FHIR/R4/RelatedPerson/47CD795E","resource":{"id":"47CD795E","identifier":[{"system":"https://fhir.nhs.uk/Id/nhs-number","value":"9730675929"}],"patient":{"identifier":{"system":"https://fhir.nhs.uk/Id/nhs-number","value":"9730676399"},"type":"Patient"},"relationship":[{"coding":[{"code":"MTH","display":"mother","system":"http://terminology.hl7.org/CodeSystem/v3-RoleCode"}]}],"resourceType":"RelatedPerson"},"search":{"mode":"match"}}],"link":[{"relation":"self","url":"https://internal-dev.api.service.nhs.uk/validated-relationships-service-api/FHIR/R4/RelatedPerson?identifier=9730675929&patient%3Aidentifier=9730676399"}],"timestamp":"2024-04-24T10:05:26+00:00","total":1,"type":"searchset","resourceType":"Bundle"}\n'

(Pdb) openapi_response.data
b'\n    \n        \n        \n        {"entry":[{"fullUrl":"https://internal-dev.api.service.nhs.uk/validated-relationships/FHIR/R4/RelatedPerson/47CD795E","resource":{"id":"47CD795E","identifier":[{"system":"https://fhir.nhs.uk/Id/nhs-number","value":"9730675929"}],"patient":{"identifier":{"system":"https://fhir.nhs.uk/Id/nhs-number","value":"9730676399"},"type":"Patient"},"relationship":[{"coding":[{"code":"MTH","display":"mother","system":"http://terminology.hl7.org/CodeSystem/v3-RoleCode"}]}],"resourceType":"RelatedPerson"},"search":{"mode":"match"}}],"link":[{"relation":"self","url":"https://internal-dev.api.service.nhs.uk/validated-relationships-service-api/FHIR/R4/RelatedPerson?identifier=9730675929&patient%3Aidentifier=9730676399"}],"timestamp":"2024-04-24T10:15:31+00:00","total":1,"type":"searchset","resourceType":"Bundle"}\n'
(Pdb) type(openapi_response.data)
<class 'bytes'>