src/Riak/TimeSeries/Cell.php
public function setValue($value = null)
    {
        $this->type = Cell::STRING_TYPE;
        $this->value = $value;

        return $this;
    }
public function setValue($value = null)
    {
        $this->type = Cell::STRING_TYPE;
        $this->value = $value;

        return $this;
    }
@param string $value

@return $this