First prototype
diff --git a/inc/Gtfs/Agency.php b/inc/Gtfs/Agency.php
new file mode 100644
index 0000000..43f1f3c
--- /dev/null
+++ b/inc/Gtfs/Agency.php
@@ -0,0 +1,307 @@
+<?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.Agency</code>
+ */
+class Agency extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The agency_id field is an ID that uniquely identifies a transit agency.
+     *
+     * Generated from protobuf field <code>string agency_id = 1;</code>
+     */
+    protected $agency_id = '';
+    /**
+     * The agency_name field contains the full name of the transit agency.
+     *
+     * Generated from protobuf field <code>string agency_name = 2;</code>
+     */
+    protected $agency_name = '';
+    /**
+     * The agency_url field contains the URL of the transit agency.
+     *
+     * Generated from protobuf field <code>string agency_url = 3;</code>
+     */
+    protected $agency_url = '';
+    /**
+     * The agency_timezone field contains the timezone where the transit agency is located.
+     *
+     * Generated from protobuf field <code>string agency_timezone = 4;</code>
+     */
+    protected $agency_timezone = '';
+    /**
+     * The agency_lang field contains a two-letter ISO 639-1 code for the primary language used by this transit agency.
+     *
+     * Generated from protobuf field <code>string agency_lang = 5;</code>
+     */
+    protected $agency_lang = '';
+    /**
+     * The agency_phone field contains a single voice telephone number for the specified agency.
+     *
+     * Generated from protobuf field <code>string agency_phone = 6;</code>
+     */
+    protected $agency_phone = '';
+    /**
+     * The agency_fare_url specifies the URL of a web page that allows a rider to purchase tickets or other fare instruments for that agency online.
+     *
+     * Generated from protobuf field <code>string agency_fare_url = 7;</code>
+     */
+    protected $agency_fare_url = '';
+    /**
+     * 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 $agency_id
+     *           The agency_id field is an ID that uniquely identifies a transit agency.
+     *     @type string $agency_name
+     *           The agency_name field contains the full name of the transit agency.
+     *     @type string $agency_url
+     *           The agency_url field contains the URL of the transit agency.
+     *     @type string $agency_timezone
+     *           The agency_timezone field contains the timezone where the transit agency is located.
+     *     @type string $agency_lang
+     *           The agency_lang field contains a two-letter ISO 639-1 code for the primary language used by this transit agency.
+     *     @type string $agency_phone
+     *           The agency_phone field contains a single voice telephone number for the specified agency.
+     *     @type string $agency_fare_url
+     *           The agency_fare_url specifies the URL of a web page that allows a rider to purchase tickets or other fare instruments for that agency online.
+     *     @type \Google\Protobuf\Any $extension
+     *           GTFS specification in order to add and evaluate new features and
+     *           modifications to the spec.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Proto\Gtfs::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The agency_id field is an ID that uniquely identifies a transit agency.
+     *
+     * Generated from protobuf field <code>string agency_id = 1;</code>
+     * @return string
+     */
+    public function getAgencyId()
+    {
+        return $this->agency_id;
+    }
+
+    /**
+     * The agency_id field is an ID that uniquely identifies a transit agency.
+     *
+     * Generated from protobuf field <code>string agency_id = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * The agency_name field contains the full name of the transit agency.
+     *
+     * Generated from protobuf field <code>string agency_name = 2;</code>
+     * @return string
+     */
+    public function getAgencyName()
+    {
+        return $this->agency_name;
+    }
+
+    /**
+     * The agency_name field contains the full name of the transit agency.
+     *
+     * Generated from protobuf field <code>string agency_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The agency_url field contains the URL of the transit agency.
+     *
+     * Generated from protobuf field <code>string agency_url = 3;</code>
+     * @return string
+     */
+    public function getAgencyUrl()
+    {
+        return $this->agency_url;
+    }
+
+    /**
+     * The agency_url field contains the URL of the transit agency.
+     *
+     * Generated from protobuf field <code>string agency_url = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyUrl($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_url = $var;
+
+        return $this;
+    }
+
+    /**
+     * The agency_timezone field contains the timezone where the transit agency is located.
+     *
+     * Generated from protobuf field <code>string agency_timezone = 4;</code>
+     * @return string
+     */
+    public function getAgencyTimezone()
+    {
+        return $this->agency_timezone;
+    }
+
+    /**
+     * The agency_timezone field contains the timezone where the transit agency is located.
+     *
+     * Generated from protobuf field <code>string agency_timezone = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyTimezone($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_timezone = $var;
+
+        return $this;
+    }
+
+    /**
+     * The agency_lang field contains a two-letter ISO 639-1 code for the primary language used by this transit agency.
+     *
+     * Generated from protobuf field <code>string agency_lang = 5;</code>
+     * @return string
+     */
+    public function getAgencyLang()
+    {
+        return $this->agency_lang;
+    }
+
+    /**
+     * The agency_lang field contains a two-letter ISO 639-1 code for the primary language used by this transit agency.
+     *
+     * Generated from protobuf field <code>string agency_lang = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyLang($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_lang = $var;
+
+        return $this;
+    }
+
+    /**
+     * The agency_phone field contains a single voice telephone number for the specified agency.
+     *
+     * Generated from protobuf field <code>string agency_phone = 6;</code>
+     * @return string
+     */
+    public function getAgencyPhone()
+    {
+        return $this->agency_phone;
+    }
+
+    /**
+     * The agency_phone field contains a single voice telephone number for the specified agency.
+     *
+     * Generated from protobuf field <code>string agency_phone = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyPhone($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_phone = $var;
+
+        return $this;
+    }
+
+    /**
+     * The agency_fare_url specifies the URL of a web page that allows a rider to purchase tickets or other fare instruments for that agency online.
+     *
+     * Generated from protobuf field <code>string agency_fare_url = 7;</code>
+     * @return string
+     */
+    public function getAgencyFareUrl()
+    {
+        return $this->agency_fare_url;
+    }
+
+    /**
+     * The agency_fare_url specifies the URL of a web page that allows a rider to purchase tickets or other fare instruments for that agency online.
+     *
+     * Generated from protobuf field <code>string agency_fare_url = 7;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAgencyFareUrl($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->agency_fare_url = $var;
+
+        return $this;
+    }
+
+    /**
+     * 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;
+    }
+
+    /**
+     * 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;
+    }
+
+}
+