Bigtable/src/V2/Row.php
public function setFamilies($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Bigtable\V2\Family::class);
        $this->families = $arr;

        return $this;
    }
public function setFamilies($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Bigtable\V2\Family::class);
        $this->families = $arr;

        return $this;
    }
public function setFamilies ( $ var ) { $ arr = GPBUtil :: checkRepeatedField ( $ var , \ Google \ Protobuf \ Internal \ GPBType :: MESSAGE , \ Google \ Cloud \ Bigtable \ V2 \ Family :: class ) ; $ this -> families = $ arr ; return $ this ; }
May be empty, but only if the entire row is empty.
The mutual ordering of column families is not specified.

Generated from protobuf field <code>repeated .google.bigtable.v2.Family families = 2;</code>
@param \Google\Cloud\Bigtable\V2\Family[]|\Google\Protobuf\Internal\RepeatedField $var
@return $this
May be empty but only if the entire row is empty . The mutual ordering of column families is not specified .