sharing

<?xml version="1.0" encoding="UTF-8"?>
<CustomObjectSharingRules xmlns="http://soap.sforce.com/2006/04/metadata">
    <ownerRules>
        <fullName>Acct1toAcc2</fullName>
        <sharedTo>
            <portalRoleAndSubordinates>CustomerUser1</portalRoleAndSubordinates>
        </sharedTo>
        <sharedFrom>
            <portalRoleAndSubordinates>CustomerUser2</portalRoleAndSubordinates>
        </sharedFrom>
        <accessLevel>Read</accessLevel>
        <name>Acct1toAcc2</name>
    </ownerRules>
    <ownerRules>
        <fullName>Acct1toAcc3</fullName>
        <sharedTo>
            <portalRoleAndSubordinates>CustomerUser</portalRoleAndSubordinates>
        </sharedTo>
        <sharedFrom>
            <portalRoleAndSubordinates>CustomerUser2</portalRoleAndSubordinates>
        </sharedFrom>
        <accessLevel>Read</accessLevel>
        <name>Acc1toAcc3</name>
    </ownerRules>
</CustomObjectSharingRules>