                  } else {
                            return '';
                        }
                    },
                },
                tooltip: {
                    enabled: true,
                    usePointStyle: true,
                    callbacks: {
                        label: (data) => {
                            return data.parsed.y + ' tests'
                        }
                    },
                },
            },
        }

        const durationChart = new Chart(durat