Base type not generated for types specified by oneOf in the schema

[attilah]

Describe the bug
I try to generate a client for the FusionAuth spec and it is using oneOf for IdentityProviderField and in the resulting source file no IdentityProvider base class is generated.

Support Key: [my-support-key]
N/A (did not find it in output)

OpenAPI Specifications
https://raw.githubusercontent.com/FusionAuth/fusionauth-openapi/main/openapi.yaml

Additional context
My quick fix were these:

1. Create an IdentityProvider class:

public class IdentityProvider
{
}

2. Change the method response to have a generic parameter:

    public partial class IdentityProviderResponse<T> where T: IdentityProvider
    {

        [JsonPropertyName("identityProvider")]

        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]   
        public T IdentityProvider { get; set; }

        [JsonPropertyName("identityProviders")]

        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]   
        public ICollection<T> IdentityProviders { get; set; }

        private IDictionary<string, object> _additionalProperties;

        [JsonExtensionData]
        public IDictionary<string, object> AdditionalProperties
        {
            get { return _additionalProperties ?? (_additionalProperties = new Dictionary<string, object>()); }
            set { _additionalProperties = value; }
        }
    }

3. Change the method signature:

Task<IdentityProviderResponse<T>> RetrieveIdentityProviderWithIdAsync<T>(string identityProviderId, CancellationToken cancellationToken = default) where T : IdentityProvider;

[christianhelle]

@attilah thanks for taking the time to report this. I'll see what I can do

[christianhelle]

@attilah The contract/dto types generated are partial classes. Would it help extending those? I piggy back on NSwag for contract/dto type generation and there is very little I can do to change how things these types are generated