make sure client apiversion parameter ends up in global set

modelerfour/modeler/modelerfour.ts

@@ -988,7 +988,12 @@ export class ModelerFour {
  value: new ConstantValue(apiversions[0])
  }));
 
- return op.request.addParameter(new Parameter('ApiVersion', 'Api Version', apiVersionConst, {
+ const p = this.codeModel.findGlobalParameter(each => each.language.default.name === 'ApiVersion');
+ if (p) {
+ return op.request.addParameter(p);
+ }
+
+ const apiVersionParameter = op.request.addParameter(new Parameter('ApiVersion', 'Api Version', apiVersionConst, {
  required: parameter.required ? true : undefined,
  //implementation: 'client' === <any>parameter['x-ms-parameter-location'] ? ImplementationLocation.Client : ImplementationLocation.Method,
  implementation: ImplementationLocation.Client,
@@ -1001,6 +1006,9 @@ export class ModelerFour {
  }
  }
  }));
+
+ this.codeModel.addGlobalParameter(apiVersionParameter);
+ return apiVersionParameter;
  }
 
  // multiple api versions. okaledokaley