src/Neutrino/Database/Schema/Blueprint.php
public function nullableTimestampsTz($precision = 0)
    {
        $this->timestampsTz($precision);

        $this->columns['created_at']->nullable();
        $this->columns['updated_at']->nullable();
    }
public function nullableTimestampsTz($precision = 0)
    {
        $this->timestampsTz($precision);

        $this->columns['created_at']->nullable();
        $this->columns['updated_at']->nullable();
    }
Add nullable creation and update timestampTz to the table.

@param  int $precision

@return void