def from_sysdisk(cls, label):
        """Retrieve disk id from available system disks"""
        disks = cls.safe_call('hosting.disk.list', {'name': label})
        if len(disks):
            return disks[0]['id']
def from_sysdisk ( cls , label ) : disks = cls . safe_call ( 'hosting.disk.list' , { 'name' : label } ) if len ( disks ) : return disks [ 0 ] [ 'id' ]
Retrieve disk id from available system disks