src/Model/Attribute/Accessor/Tenant.php
public function setTenant(?string $tenant)
    {
        if (null !== $tenant) {
            if (!preg_match('/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i', $tenant)) {
                throw new InvalidArgumentException('Assignee uuid is not valid.');
            }
        }

        $this->tenant = $tenant;

        return $this;
    }
public function setTenant(?string $tenant)
    {
        if (null !== $tenant) {
            if (!preg_match('/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i', $tenant)) {
                throw new InvalidArgumentException('Assignee uuid is not valid.');
            }
        }

        $this->tenant = $tenant;

        return $this;
    }
Set tenant

@param string $tenant
@return object
@throws \InvalidArgumentException