'Creates the volume group from source.
:param context: the context
:param group: the group object to be created
:param volumes: volumes in the group
:param group_snapshot: the source volume group snapshot
:param snapshots: snapshots of the source volumes
:param source_group: the dictionary of a volume group as source.
:param source_vols: a list of volume dictionaries in the source_group.'

def create_group_from_src(self, context, group, volumes, group_snapshot=None, snapshots=None, source_group=None, source_vols=None):

    return self.common.create_group_from_src(context, group, volumes, group_snapshot, snapshots, source_group, source_vols)
