template fix to allow force accepting tables

Author: oganm

sdk-gen/templ/api.mustache

@@ -88,6 +88,8 @@ class {{classname}}(object):
         all_params.append('_return_http_data_only')
         all_params.append('_preload_content')
         all_params.append('_request_timeout')
+        all_params.append('_force_table')
+
 
         params = locals()
         for key, val in six.iteritems(params['kwargs']):
@@ -183,8 +185,14 @@ class {{classname}}(object):
 {{/bodyParam}}
         {{#hasProduces}}
         # HTTP header `Accept`
-        header_params['Accept'] = self.api_client.select_header_accept(
-            [{{#produces}}'{{{mediaType}}}'{{#hasMore}}, {{/hasMore}}{{/produces}}])  # noqa: E501
+        if not kwargs.get('_force_table'):
+            header_params['Accept'] = self.api_client.select_header_accept(
+                [{{#produces}}'{{{mediaType}}}'{{#hasMore}}, {{/hasMore}}{{/produces}}])  # noqa: E501
+            response_type = {{#returnType}}'{{returnType}}'{{/returnType}}{{^returnType}}None{{/returnType}} # noqa: E501
+        else:
+            header_params['Accept'] = 'text/tab-separated-values; charset=UTF-8'
+            response_type = 'str'
+            
 
         {{/hasProduces}}
         {{#hasConsumes}}
@@ -204,7 +212,7 @@ class {{classname}}(object):
             body=body_params,
             post_params=form_params,
             files=local_var_files,
-            response_type={{#returnType}}'{{returnType}}'{{/returnType}}{{^returnType}}None{{/returnType}},  # noqa: E501
+            response_type=response_type,
             auth_settings=auth_settings,
             async_req=params.get('async_req'),
             _return_http_data_only=params.get('_return_http_data_only'),