func get_completion(_prompt, _suffix):
    var prompt = _prompt
    var suffix = _suffix
    var combined_prompt = prompt + suffix
    var diff = combined_prompt.length() - MAX_LENGTH
    if diff > 0:
        if suffix.length() > diff:
            suffix = suffix.substr(0,diff)
        else:
            prompt = prompt.substr(diff - suffix.length())
            suffix = ""
    var calculated_model = model
    if model == "custom":
        calculated_model = custom_model_text
    var body = {
        "model": calculated_model,
        "prompt": PROMPT_PREFIX + prompt,
        "suffix": suffix,
        "options":{
            "temperature": 0.01,
        },
        "stream": false,
    }
    var headers = [
        "Content-Type: application/json"
    ]
    var http_request = HTTPRequest.new()
    add_child(http_request)
    http_request.connect("request_completed",on_request_completed.bind(prompt, suffix, http_request))
    var json_body = JSON.stringify(body)
    var error = http_request.request(URL, headers, HTTPClient.METHOD_POST, json_body)
    if error != OK:
        emit_signal("completion_error", null)

func on_request_completed(result, response_code, headers, body, pre, post, http_request):
    var test_json_conv = JSON.new()
    test_json_conv.parse(body.get_string_from_utf8())
    var json = test_json_conv.get_data()
    var response = json
    if not response or !response.has("response"):
        emit_signal("completion_error", response)
        return
    var completion = response.response
    if is_instance_valid(http_request):
        http_request.queue_free()
    emit_signal("completion_received", completion, pre, post)