typescript-fetch strict compile errors for BaseApi and RequiredError with tsconfig.json strict = true

Description

I am compiling our swagger definition which is passing validation (valid json). The codegen tool typescript-fetch works as expected and generates the required output. I can run the project as expected with typescript setting tsconfig.json property strict set to false. I would prefer to leave strict set to true as the rest of our project is well formed.

These are the following errors we receive:

ERROR in D:/Development/alloy-vue/src/commons/api/api.ts
58:15 Property 'configuration' has no initializer and is not definitely assigned in the constructor.
    56 |  */
    57 | export class BaseAPI {
  > 58 |     protected configuration: Configuration;
       |               ^
    59 |
    60 |     constructor(configuration?: Configuration, protected basePath: string = BASE_PATH, protected fetch: FetchAPI = portableFetch) {
    61 |         if (configuration) {
ERROR in D:/Development/alloy-vue/src/commons/api/api.ts
75:5 Property 'name' has no initializer and is not definitely assigned in the constructor.
    73 |  */
    74 | export class RequiredError extends Error {
  > 75 |     name: "RequiredError"
       |     ^
    76 |     constructor(public field: string, msg?: string) {
    77 |         super(msg);
    78 |     }

Swagger-codegen version

2.3.1

Swagger declaration file content or url

Link to swagger json

https://gist.github.com/fungus1487/bfd56c4dbae372e90f4a3be83068824e

Command line used for generation

java -jar swagger-codegen-cli-2.3.1.jar generate -i "url of json" -l typescript-fetch -o ./out

Steps to reproduce

Simply compile the linked json with typescript-fetch and enable strict property in tsconfig.json

Generate the linked Swagger JSON with the typescript-fetch target, then compile the output with tsconfig.json strict enabled and inspect api.ts, especially BaseAPI and RequiredError. Done means the generated client compiles without the reported strict-property-initialization errors.