update template to allow for additional headers

Author: ori-shalom

src/templates/exportService.hbs

@@ -105,10 +105,17 @@ export class {{{name}}}{{{@root.postfix}}} {
 			{{/if}}
 			{{#if parametersHeader}}
 			headers: {
+				{{#if @root.useOptions}}
+				...additionalHeaders,
+				{{/if}}
 				{{#each parametersHeader}}
 				'{{{prop}}}': {{{name}}},
 				{{/each}}
 			},
+			{{else}}
+			{{#if @root.useOptions}}
+			headers: additionalHeaders,
+			{{/if}}
 			{{/if}}
 			{{#if parametersQuery}}
 			query: {

src/templates/partials/parameters.hbs

@@ -1,9 +1,11 @@
-{{#if parameters}}
-{{#if @root.useOptions~}}
+{{~#if @root.useOptions}}
 {
 {{#each parameters}}
 {{{name}}}{{#if default}} = {{{default}}}{{/if}},
 {{/each}}
+{{#if @root.useOptions}}
+additionalHeaders = {},
+{{/if}}
 }: {
 {{#each parameters}}
 {{#ifdef description deprecated}}
@@ -18,11 +20,13 @@
 {{/ifdef}}
 {{{name}}}{{>isRequired}}: {{>type}},
 {{/each}}
-}
+additionalHeaders?: Record<string, string>,
+}{{#unless parameters}} = {}{{/unless}}
 {{~else}}
+{{#if parameters}}
 
 {{#each parameters}}
 {{{name}}}{{>isRequired}}: {{>type}}{{#if default}} = {{{default}}}{{/if}},
 {{/each}}
 {{/if}}
-{{/if}}
+{{/if}}