<Date> ::=
        <Year>-<Month>-<Day> |
        (+|-)<Number>(d|w|y) |
        never|
        today

<DomainName> ::= <String>(.<String>)+
<DomainNameList> ::= "<DomainName>(,<DomainName>)*"
<DomainNameEntity> ::=
        <DomainNameList> | <FileSelector> | <CSVkmdSelector> |  <CSVDataSelector>
        See: https://github.com/taers232c/GAMADV-XTD3/wiki/Collections-of-Items

<SiteName> ::= [a-z,0-9,-]+
<SiteItem> ::= [<DomainName>/]<SiteName>
<SiteList> ::= "<SiteItem>(,<SiteItem>)*"
<SiteEntity> ::=
        <SiteList> | <FileSelector> | <CSVkmdSelector> | <CSVDataSelector>
        See: https://github.com/taers232c/GAMADV-XTD3/wiki/Collections-of-Items

<SiteACLRole> ::= editor|owner|reader|writer
<SiteACLRoleList> ::= "<SiteACLRole>(,<SiteACLRole>)*"

<SiteAttribute> ::=
        (categories <String>)|
        (name <String>)|
        (sourcelink <URI>])|
        (summary <String>)|
        (theme <String>)

<SiteACLScope> ::=
        <EmailAddress>|user:<EmailAdress>|group:<EmailAddress>|
        domain:<DomainName>|domain|default
<SiteACLScopeList> ::= "<SiteACLScope>(,<SiteACLScope>)*"
<SiteACLScopeEntity> ::=
        <SiteACLScopeList> | <FileSelector> | <CSVkmdSelector> | <CSVDataSelector>
        See: https://github.com/taers232c/GAMADV-XTD3/wiki/Collections-of-Items

gam [<UserTypeEntity>] create site <SiteItem> <SiteAttribute>*
gam [<UserTypeEntity>] update sites <SiteEntity> <SiteAttribute>+

gam [<UserTypeEntity>] info sites <SiteEntity>
        [withmappings] [role|roles all|<SiteACLRoleList>]
gam [<UserTypeEntity>] show sites [domain|domains <DomainNameEntity>] [includeallsites]
        [withmappings] [role|roles all|<SiteACLRoleList>] [maxresults <Number>]
gam [<UserTypeEntity>] print sites [todrive <ToDriveAttribute>*]
        [domain|domains <DomainNameEntity>] [includeallsites] 
        [withmappings] [role|roles all|<SiteACLRoleList>] [maxresults <Number>]
        [convertcrnl] [delimiter <Character>]

gam [<UserTypeEntity>] print siteactivity <SiteEntity> [todrive <ToDriveAttribute>*]
        [maxresults <Number>] [updated_min <Date>] [updated_max <Date>]

gam [<UserTypeEntity>] add siteacls <SiteEntity> <SiteACLRole> <SiteACLScopeEntity>
gam [<UserTypeEntity>] update siteacls <SiteEntity> <SiteACLRole> <SiteACLScopeEntity>
gam [<UserTypeEntity>] delete siteacls <SiteEntity> <SiteACLScopeEntity>

gam [<UserTypeEntity>] info siteacls <SiteEntity> <SiteACLScopeEntity>
gam [<UserTypeEntity>] show siteacls <SiteEntity>
gam [<UserTypeEntity>] print siteacls <SiteEntity> [todrive <ToDriveAttribute>*]