how to restrict permission to the owner user only in django code example

Example 1: django user permission check

# all your import goes here for Models.py
...

# Adding Permissions to a Model.
class BlogPost(models.Model):
  ... # model fields
  class Meta:
    permissions = [('can_write_blog', 'Can Write Blog')]
    

# Checking permissions in Views.py
if request.user.has_perm('app_name.can_write_blog'):
  # give access to blog post form
else:
  # restrict user from access the page.

Example 2: staff user is not restricting permission in django

class UserAdmin(BaseUserAdmin):
    ...
    def has_add_permission(self, request, obj=None):
        return request.user.is_superuser

    def has_delete_permission(self, request, obj=None):
        return request.user.is_superuser