First prototype
diff --git a/inc/Gtfs/Stop.php b/inc/Gtfs/Stop.php
new file mode 100644
index 0000000..ae0170b
--- /dev/null
+++ b/inc/Gtfs/Stop.php
@@ -0,0 +1,454 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: proto/gtfs.proto
+
+namespace Gtfs;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Generated from protobuf message <code>gtfs.Stop</code>
+ */
+class Stop extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The stop_id field contains an ID that uniquely identifies a stop or station.
+     * Multiple routes may use the same stop. stop_id is dataset unique.
+     *
+     * Generated from protobuf field <code>string stop_id = 1;</code>
+     */
+    protected $stop_id = '';
+    /**
+     * The stop_code field contains short text or a number that uniquely identifies the stop for passengers.
+     *
+     * Generated from protobuf field <code>string stop_code = 2;</code>
+     */
+    protected $stop_code = '';
+    /**
+     * The stop_name field contains the name of a stop or station.
+     *
+     * Generated from protobuf field <code>string stop_name = 3;</code>
+     */
+    protected $stop_name = '';
+    /**
+     * The stop_desc field contains a description of a stop.
+     *
+     * Generated from protobuf field <code>string stop_desc = 4;</code>
+     */
+    protected $stop_desc = '';
+    /**
+     * Degrees North, in the WGS-84 coordinate system.
+     *
+     * Generated from protobuf field <code>float latitude = 5;</code>
+     */
+    protected $latitude = 0.0;
+    /**
+     * Degrees East, in the WGS-84 coordinate system.
+     *
+     * Generated from protobuf field <code>float longitude = 6;</code>
+     */
+    protected $longitude = 0.0;
+    /**
+     * Generated from protobuf field <code>string zone_id = 7;</code>
+     */
+    protected $zone_id = '';
+    /**
+     * Generated from protobuf field <code>string stop_url = 8;</code>
+     */
+    protected $stop_url = '';
+    /**
+     * Generated from protobuf field <code>.gtfs.Stop.LocationType location_type = 9;</code>
+     */
+    protected $location_type = 0;
+    /**
+     * Generated from protobuf field <code>string parent_station = 10;</code>
+     */
+    protected $parent_station = '';
+    /**
+     * Generated from protobuf field <code>string agency_timezone = 11;</code>
+     */
+    protected $agency_timezone = '';
+    /**
+     * The exact status of the vehicle with respect to the current stop.
+     * Ignored if current_stop_sequence is missing.
+     *
+     * Generated from protobuf field <code>.gtfs.Stop.WheelchairBoarding wheelchair_boarding = 12;</code>
+     */
+    protected $wheelchair_boarding = 0;
+    /**
+     * The extensions namespace allows 3rd-party developers to extend the
+     * GTFS specification in order to add and evaluate new features and
+     * modifications to the spec.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Any extension = 2000;</code>
+     */
+    protected $extension = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $stop_id
+     *           The stop_id field contains an ID that uniquely identifies a stop or station.
+     *           Multiple routes may use the same stop. stop_id is dataset unique.
+     *     @type string $stop_code
+     *           The stop_code field contains short text or a number that uniquely identifies the stop for passengers.
+     *     @type string $stop_name
+     *           The stop_name field contains the name of a stop or station.
+     *     @type string $stop_desc
+     *           The stop_desc field contains a description of a stop.
+     *     @type float $latitude
+     *           Degrees North, in the WGS-84 coordinate system.
+     *     @type float $longitude
+     *           Degrees East, in the WGS-84 coordinate system.
+     *     @type string $zone_id
+     *     @type string $stop_url
+     *     @type int $location_type
+     *     @type string $parent_station
+     *     @type string $agency_timezone
+     *     @type int $wheelchair_boarding
+     *           The exact status of the vehicle with respect to the current stop.
+     *           Ignored if current_stop_sequence is missing.
+     *     @type \Google\Protobuf\Any $extension
+     *           The extensions namespace allows 3rd-party developers to extend the
+     *           GTFS specification in order to add and evaluate new features and
+     *           modifications to the spec.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Proto\Gtfs::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The stop_id field contains an ID that uniquely identifies a stop or station.
+     * Multiple routes may use the same stop. stop_id is dataset unique.
+     *
+     * Generated from protobuf field <code>string stop_id = 1;</code>
+     * @return string
+     */
+    public function getStopId()
+    {
+        return $this->stop_id;
+    }
+
+    /**
+     * The stop_id field contains an ID that uniquely identifies a stop or station.
+     * Multiple routes may use the same stop. stop_id is dataset unique.
+     *
+     * Generated from protobuf field <code>string stop_id = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setStopId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->stop_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * The stop_code field contains short text or a number that uniquely identifies the stop for passengers.
+     *
+     * Generated from protobuf field <code>string stop_code = 2;</code>
+     * @return string
+     */
+    public function getStopCode()
+    {
+        return $this->stop_code;
+    }
+
+    /**
+     * The stop_code field contains short text or a number that uniquely identifies the stop for passengers.
+     *
+     * Generated from protobuf field <code>string stop_code = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setStopCode($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->stop_code = $var;
+
+        return $this;
+    }
+
+    /**
+     * The stop_name field contains the name of a stop or station.
+     *
+     * Generated from protobuf field <code>string stop_name = 3;</code>
+     * @return string
+     */
+    public function getStopName()
+    {
+        return $this->stop_name;
+    }
+
+    /**
+     * The stop_name field contains the name of a stop or station.
+     *
+     * Generated from protobuf field <code>string stop_name = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setStopName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->stop_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The stop_desc field contains a description of a stop.
+     *
+     * Generated from protobuf field <code>string stop_desc = 4;</code>
+     * @return string
+     */
+    public function getStopDesc()
+    {
+        return $this->stop_desc;
+    }
+
+    /**
+     * The stop_desc field contains a description of a stop.
+     *
+     * Generated from protobuf field <code>string stop_desc = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setStopDesc($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->stop_desc = $var;
+
+        return $this;
+    }
+
+    /**
+     * Degrees North, in the WGS-84 coordinate system.
+     *
+     * Generated from protobuf field <code>float latitude = 5;</code>
+     * @return float
+     */
+    public function getLatitude()
+    {
+        return $this->latitude;
+    }
+
+    /**
+     * Degrees North, in the WGS-84 coordinate system.
+     *
+     * Generated from protobuf field <code>float latitude = 5;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setLatitude($var)
+    {
+        GPBUtil::checkFloat($var);
+        $this->latitude = $var;
+
+        return $this;
+    }
+
+    /**
+     * Degrees East, in the WGS-84 coordinate system.
+     *
+     * Generated from protobuf field <code>float longitude = 6;</code>
+     * @return float
+     */
+    public function getLongitude()
+    {
+        return $this->longitude;
+    }
+
+    /**
+     * Degrees East, in the WGS-84 coordinate system.
+     *
+     * Generated from protobuf field <code>float longitude = 6;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setLongitude($var)
+    {
+        GPBUtil::checkFloat($var);
+        $this->longitude = $var;
+
+        return $this;
+    }
+
+    /**
+     * Generated from protobuf field <code>string zone_id = 7;</code>
+     * @return string
+     */
+    public function getZoneId()
+    {
+        return $this->zone_id;
+    }
+
+    /**
+     * Generated from protobuf field <code>string zone_id = 7;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setZoneId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->zone_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * Generated from protobuf field <code>string stop_url = 8;</code>
+     * @return string
+     */
+    public function getStopUrl()
+    {
+        return $this->stop_url;
+    }
+
+    /**
+     * Generated from protobuf field <code>string stop_url = 8;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setStopUrl($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->stop_url = $var;
+
+        return $this;
+    }
+
+    /**
+     * Generated from protobuf field <code>.gtfs.Stop.LocationType location_type = 9;</code>
+     * @return int
+     */
+    public function getLocationType()
+    {
+        return $this->location_type;
+    }
+
+    /**
+     * Generated from protobuf field <code>.gtfs.Stop.LocationType location_type = 9;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setLocationType($var)
+    {
+        GPBUtil::checkEnum($var, \Gtfs\Stop_LocationType::class);
+        $this->location_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * Generated from protobuf field <code>string parent_station = 10;</code>
+     * @return string
+     */
+    public function getParentStation()
+    {
+        return $this->parent_station;
+    }
+
+    /**
+     * Generated from protobuf field <code>string parent_station = 10;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParentStation($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent_station = $var;
+
+        return $this;
+    }
+
+    /**
+     * Generated from protobuf field <code>string agency_timezone = 11;</code>
+     * @return string
+     */
+    public function getAgencyTimezone()
+    {
+        return $this->agency_timezone;
+    }
+
+    /**
+     * Generated from protobuf field <code>string agency_timezone = 11;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyTimezone($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_timezone = $var;
+
+        return $this;
+    }
+
+    /**
+     * The exact status of the vehicle with respect to the current stop.
+     * Ignored if current_stop_sequence is missing.
+     *
+     * Generated from protobuf field <code>.gtfs.Stop.WheelchairBoarding wheelchair_boarding = 12;</code>
+     * @return int
+     */
+    public function getWheelchairBoarding()
+    {
+        return $this->wheelchair_boarding;
+    }
+
+    /**
+     * The exact status of the vehicle with respect to the current stop.
+     * Ignored if current_stop_sequence is missing.
+     *
+     * Generated from protobuf field <code>.gtfs.Stop.WheelchairBoarding wheelchair_boarding = 12;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setWheelchairBoarding($var)
+    {
+        GPBUtil::checkEnum($var, \Gtfs\Stop_WheelchairBoarding::class);
+        $this->wheelchair_boarding = $var;
+
+        return $this;
+    }
+
+    /**
+     * The extensions namespace allows 3rd-party developers to extend the
+     * GTFS specification in order to add and evaluate new features and
+     * modifications to the spec.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Any extension = 2000;</code>
+     * @return \Google\Protobuf\Any
+     */
+    public function getExtension()
+    {
+        return $this->extension;
+    }
+
+    /**
+     * The extensions namespace allows 3rd-party developers to extend the
+     * GTFS specification in order to add and evaluate new features and
+     * modifications to the spec.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Any extension = 2000;</code>
+     * @param \Google\Protobuf\Any $var
+     * @return $this
+     */
+    public function setExtension($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Any::class);
+        $this->extension = $var;
+
+        return $this;
+    }
+
+}
+