First prototype
diff --git a/inc/Gtfs/FeedEntity.php b/inc/Gtfs/FeedEntity.php
new file mode 100644
index 0000000..b77caca
--- /dev/null
+++ b/inc/Gtfs/FeedEntity.php
@@ -0,0 +1,445 @@
+<?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;
+
+/**
+ * A definition (or update) of an entity in the transit feed.
+ *
+ * Generated from protobuf message <code>gtfs.FeedEntity</code>
+ */
+class FeedEntity extends \Google\Protobuf\Internal\Message
+{
+ /**
+ * The ids are used only to provide incrementality support. The id should be
+ * unique within a FeedMessage. Consequent FeedMessages may contain
+ * FeedEntities with the same id. In case of a DIFFERENTIAL update the new
+ * FeedEntity with some id will replace the old FeedEntity with the same id
+ * (or delete it - see is_deleted below).
+ * The actual GTFS entities (e.g. stations, routes, trips) referenced by the
+ * feed must be specified by explicit selectors (see EntitySelector below for
+ * more info).
+ *
+ * Generated from protobuf field <code>string id = 1;</code>
+ */
+ protected $id = '';
+ /**
+ * Whether this entity is to be deleted. Relevant only for incremental
+ * fetches.
+ *
+ * Generated from protobuf field <code>bool is_deleted = 2;</code>
+ */
+ protected $is_deleted = false;
+ /**
+ * Generated from protobuf field <code>.google.protobuf.Any extension = 2000;</code>
+ */
+ protected $extension = null;
+ protected $element;
+
+ /**
+ * Constructor.
+ *
+ * @param array $data {
+ * Optional. Data for populating the Message object.
+ *
+ * @type string $id
+ * The ids are used only to provide incrementality support. The id should be
+ * unique within a FeedMessage. Consequent FeedMessages may contain
+ * FeedEntities with the same id. In case of a DIFFERENTIAL update the new
+ * FeedEntity with some id will replace the old FeedEntity with the same id
+ * (or delete it - see is_deleted below).
+ * The actual GTFS entities (e.g. stations, routes, trips) referenced by the
+ * feed must be specified by explicit selectors (see EntitySelector below for
+ * more info).
+ * @type bool $is_deleted
+ * Whether this entity is to be deleted. Relevant only for incremental
+ * fetches.
+ * @type \Gtfs\Agency $agency
+ * @type \Gtfs\Stop $stop
+ * @type \Gtfs\Route $route
+ * @type \Gtfs\Trip $trip
+ * @type \Gtfs\StopTime $stop_time
+ * @type \Gtfs\Calendar $calendar
+ * @type \Gtfs\CalendarDate $calendar_date
+ * @type \Gtfs\FareAttribute $fare_attribute
+ * @type \Gtfs\FareRule $fare_rule
+ * @type \Gtfs\Shape $shape
+ * @type \Gtfs\Frequency $frequency
+ * @type \Gtfs\Transfer $transfer
+ * @type \Google\Protobuf\Any $extension
+ * }
+ */
+ public function __construct($data = NULL) {
+ \GPBMetadata\Proto\Gtfs::initOnce();
+ parent::__construct($data);
+ }
+
+ /**
+ * The ids are used only to provide incrementality support. The id should be
+ * unique within a FeedMessage. Consequent FeedMessages may contain
+ * FeedEntities with the same id. In case of a DIFFERENTIAL update the new
+ * FeedEntity with some id will replace the old FeedEntity with the same id
+ * (or delete it - see is_deleted below).
+ * The actual GTFS entities (e.g. stations, routes, trips) referenced by the
+ * feed must be specified by explicit selectors (see EntitySelector below for
+ * more info).
+ *
+ * Generated from protobuf field <code>string id = 1;</code>
+ * @return string
+ */
+ public function getId()
+ {
+ return $this->id;
+ }
+
+ /**
+ * The ids are used only to provide incrementality support. The id should be
+ * unique within a FeedMessage. Consequent FeedMessages may contain
+ * FeedEntities with the same id. In case of a DIFFERENTIAL update the new
+ * FeedEntity with some id will replace the old FeedEntity with the same id
+ * (or delete it - see is_deleted below).
+ * The actual GTFS entities (e.g. stations, routes, trips) referenced by the
+ * feed must be specified by explicit selectors (see EntitySelector below for
+ * more info).
+ *
+ * Generated from protobuf field <code>string id = 1;</code>
+ * @param string $var
+ * @return $this
+ */
+ public function setId($var)
+ {
+ GPBUtil::checkString($var, True);
+ $this->id = $var;
+
+ return $this;
+ }
+
+ /**
+ * Whether this entity is to be deleted. Relevant only for incremental
+ * fetches.
+ *
+ * Generated from protobuf field <code>bool is_deleted = 2;</code>
+ * @return bool
+ */
+ public function getIsDeleted()
+ {
+ return $this->is_deleted;
+ }
+
+ /**
+ * Whether this entity is to be deleted. Relevant only for incremental
+ * fetches.
+ *
+ * Generated from protobuf field <code>bool is_deleted = 2;</code>
+ * @param bool $var
+ * @return $this
+ */
+ public function setIsDeleted($var)
+ {
+ GPBUtil::checkBool($var);
+ $this->is_deleted = $var;
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Agency agency = 3;</code>
+ * @return \Gtfs\Agency
+ */
+ public function getAgency()
+ {
+ return $this->readOneof(3);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Agency agency = 3;</code>
+ * @param \Gtfs\Agency $var
+ * @return $this
+ */
+ public function setAgency($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Agency::class);
+ $this->writeOneof(3, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Stop stop = 4;</code>
+ * @return \Gtfs\Stop
+ */
+ public function getStop()
+ {
+ return $this->readOneof(4);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Stop stop = 4;</code>
+ * @param \Gtfs\Stop $var
+ * @return $this
+ */
+ public function setStop($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Stop::class);
+ $this->writeOneof(4, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Route route = 5;</code>
+ * @return \Gtfs\Route
+ */
+ public function getRoute()
+ {
+ return $this->readOneof(5);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Route route = 5;</code>
+ * @param \Gtfs\Route $var
+ * @return $this
+ */
+ public function setRoute($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Route::class);
+ $this->writeOneof(5, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Trip trip = 6;</code>
+ * @return \Gtfs\Trip
+ */
+ public function getTrip()
+ {
+ return $this->readOneof(6);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Trip trip = 6;</code>
+ * @param \Gtfs\Trip $var
+ * @return $this
+ */
+ public function setTrip($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Trip::class);
+ $this->writeOneof(6, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.StopTime stop_time = 7;</code>
+ * @return \Gtfs\StopTime
+ */
+ public function getStopTime()
+ {
+ return $this->readOneof(7);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.StopTime stop_time = 7;</code>
+ * @param \Gtfs\StopTime $var
+ * @return $this
+ */
+ public function setStopTime($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\StopTime::class);
+ $this->writeOneof(7, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Calendar calendar = 8;</code>
+ * @return \Gtfs\Calendar
+ */
+ public function getCalendar()
+ {
+ return $this->readOneof(8);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Calendar calendar = 8;</code>
+ * @param \Gtfs\Calendar $var
+ * @return $this
+ */
+ public function setCalendar($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Calendar::class);
+ $this->writeOneof(8, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.CalendarDate calendar_date = 9;</code>
+ * @return \Gtfs\CalendarDate
+ */
+ public function getCalendarDate()
+ {
+ return $this->readOneof(9);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.CalendarDate calendar_date = 9;</code>
+ * @param \Gtfs\CalendarDate $var
+ * @return $this
+ */
+ public function setCalendarDate($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\CalendarDate::class);
+ $this->writeOneof(9, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.FareAttribute fare_attribute = 10;</code>
+ * @return \Gtfs\FareAttribute
+ */
+ public function getFareAttribute()
+ {
+ return $this->readOneof(10);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.FareAttribute fare_attribute = 10;</code>
+ * @param \Gtfs\FareAttribute $var
+ * @return $this
+ */
+ public function setFareAttribute($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\FareAttribute::class);
+ $this->writeOneof(10, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.FareRule fare_rule = 11;</code>
+ * @return \Gtfs\FareRule
+ */
+ public function getFareRule()
+ {
+ return $this->readOneof(11);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.FareRule fare_rule = 11;</code>
+ * @param \Gtfs\FareRule $var
+ * @return $this
+ */
+ public function setFareRule($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\FareRule::class);
+ $this->writeOneof(11, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Shape shape = 12;</code>
+ * @return \Gtfs\Shape
+ */
+ public function getShape()
+ {
+ return $this->readOneof(12);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Shape shape = 12;</code>
+ * @param \Gtfs\Shape $var
+ * @return $this
+ */
+ public function setShape($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Shape::class);
+ $this->writeOneof(12, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Frequency frequency = 13;</code>
+ * @return \Gtfs\Frequency
+ */
+ public function getFrequency()
+ {
+ return $this->readOneof(13);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Frequency frequency = 13;</code>
+ * @param \Gtfs\Frequency $var
+ * @return $this
+ */
+ public function setFrequency($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Frequency::class);
+ $this->writeOneof(13, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Transfer transfer = 14;</code>
+ * @return \Gtfs\Transfer
+ */
+ public function getTransfer()
+ {
+ return $this->readOneof(14);
+ }
+
+ /**
+ * Generated from protobuf field <code>.gtfs.Transfer transfer = 14;</code>
+ * @param \Gtfs\Transfer $var
+ * @return $this
+ */
+ public function setTransfer($var)
+ {
+ GPBUtil::checkMessage($var, \Gtfs\Transfer::class);
+ $this->writeOneof(14, $var);
+
+ return $this;
+ }
+
+ /**
+ * Generated from protobuf field <code>.google.protobuf.Any extension = 2000;</code>
+ * @return \Google\Protobuf\Any
+ */
+ public function getExtension()
+ {
+ return $this->extension;
+ }
+
+ /**
+ * 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;
+ }
+
+ /**
+ * @return string
+ */
+ public function getElement()
+ {
+ return $this->whichOneof("element");
+ }
+
+}
+