src/Integration/Configuration.php
public function set($key, $value, $fromFile = false)
    {
        $keys = array_filter(explode('.', $key));

        $value = ($fromFile) ? require $value : $value;

        $this->save($keys, $this->data, $value);

        return $this;
    }
public function set($key, $value, $fromFile = false)
    {
        $keys = array_filter(explode('.', $key));

        $value = ($fromFile) ? require $value : $value;

        $this->save($keys, $this->data, $value);

        return $this;
    }
Sets the value to the specified key.

@param  string  $key
@param  mixed   $value
@param  boolean $fromFile
@param  mixed
@return self