Huge RAM increases when using generateKeywordIdeas

[GDTNguyen]

Running the generateKeywordIdeas function spikes the memory usage on my Heroku worker dynos by 200MB(next js). This is a problem because it exceed out 500mb limit and worst case memory leaks. I've tried manually dereferencing keywordPlanIdeaService after using it, but it doesn't help reduce the memory spikes.

    let keywordPlanIdeaService = await customer.keywordPlanIdeas

    const generateKeywordIdeaResponse = await keywordPlanIdeaService.generateKeywordIdeas({
        customer_id: loginCustomerId,
        page_size: 20,
        keyword_seed: keywordSeed
    })

    keywordPlanIdeaService = null