not getting fetch data from OneToOneFiled in Django Rest Framework

Changes related and verbose name solve this problem:

class Hiring(BaseModel):
    driver = models.OneToOneField(
        Driver,
        models.CASCADE,
        related_name='hiring',
        verbose_name='hiring',
        null=True, blank=True
    )
    status = models.CharField(max_length = 255,choices=STATUS_CHOICES, null=True, blank=True)