azure-storage-common/src/Common/Models/AccessPolicy.php
public function setStart(\DateTime $start = null)
    {
        if ($start != null) {
            Validate::isDate($start);
        }
        $this->start = $start;
    }
public function setStart(\DateTime $start = null)
    {
        if ($start != null) {
            Validate::isDate($start);
        }
        $this->start = $start;
    }
Sets start.

@param \DateTime $start value.

@return void