// Deletes negative keywords from the specified campaign or ad group.

        private async Task <IList <BatchErrorCollection> > DeleteNegativeKeywordsFromEntitiesAsync(IList <EntityNegativeKeyword> entityNegativeKeywords)
        {
            var request = new DeleteNegativeKeywordsFromEntitiesRequest
            {
                EntityNegativeKeywords = entityNegativeKeywords,
            };

            return((await Service.CallAsync((s, r) => s.DeleteNegativeKeywordsFromEntitiesAsync(r), request)).NestedPartialErrors);
        }
        // Deletes negative keywords from the specified campaign or ad group. 

        private async Task<IList<BatchErrorCollection>> DeleteNegativeKeywordsFromEntitiesAsync(IList<EntityNegativeKeyword> entityNegativeKeywords)
        {
            var request = new DeleteNegativeKeywordsFromEntitiesRequest
            {
                EntityNegativeKeywords = entityNegativeKeywords,
            };

            return (await Service.CallAsync((s, r) => s.DeleteNegativeKeywordsFromEntitiesAsync(r), request)).NestedPartialErrors;
        }