diff --git a/.gitignore b/.gitignore
index 9079060..421dd1d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,8 @@ clear-data.ts
 .lsp/
 cache
 *.iml
+test_dir
+fhir-schema
 
 # Added by cargo
 
diff --git a/deps.edn b/deps.edn
index 0fb92d5..7d15132 100644
--- a/deps.edn
+++ b/deps.edn
@@ -6,6 +6,7 @@
  :deps {org.clojure/clojure  {:mvn/version "1.11.1"}
         borkdude/edamame      {:mvn/version "1.3.23"}
         com.taoensso/nippy   {:mvn/version "3.2.0"}
+        cheshire/cheshire    {:mvn/version "5.11.0"}
         zen-lang/zen         {:git/url "https://github.com/zen-lang/zen"
                               :sha     "b42170c22a1902976cc60efc92487af351c253aa"
                               :exclusions [org.slf4j/slf4j-log4j12]}}
diff --git a/resources/index.ts b/resources/index.ts
index 302c8ff..f7ad6d1 100644
--- a/resources/index.ts
+++ b/resources/index.ts
@@ -408,7 +408,7 @@ class Workflow {
 
 export interface TokenStorage {
   get: () => Promise<string | null> | string | null;
-  set: (token: string) => Promise<void> | void;
+  set: (token: string | undefined) => Promise<void> | void;
 }
 
 const resourceOwnerAuthorization = (httpclient: HttpClientInstance, auth: ResourceOwnerAuthorization) => async ({ username, password }: { username: string, password: string }) => {
@@ -429,6 +429,10 @@ const resourceOwnerAuthorization = (httpclient: HttpClientInstance, auth: Resour
   return response
 }
 
+const resourceOwnerLogout = (httpclient: HttpClientInstance, auth: ResourceOwnerAuthorization) => async () => {
+  auth.storage.set(undefined)
+}
+
 type BasicAuthorization = { method: 'basic', credentials: { username: string, password: string } }
 type ResourceOwnerAuthorization = { method: 'resource-owner', client: { id: string, secret: string }, storage: TokenStorage }
 
diff --git a/src/generator/core.clj b/src/generator/core.clj
index 5546960..60ae958 100644
--- a/src/generator/core.clj
+++ b/src/generator/core.clj
@@ -218,7 +218,6 @@
    {}
    searches))
 
-
 (defn gen-searches [ztx path]
   (println "[types] Generate search params")
   (let [definitions (->> (zen.core/get-tag ztx 'zen.fhir/searches)
diff --git a/src/generator/writer.clj b/src/generator/writer.clj
index ee97365..650db86 100644
--- a/src/generator/writer.clj
+++ b/src/generator/writer.clj
@@ -129,7 +129,7 @@
 (defmulti generate-types (fn [target _input _config]  target))
 
 (defmethod generate-types :typescript
-  [_target input {:keys [target-path] :as _config}]
+  [_target input {:keys [target-path] :as _config}] 
   (let [dir (io/file target-path)]
     (when-not (.exists dir)
       (.mkdir dir))
diff --git a/src/python-generator/core.clj b/src/python-generator/core.clj
new file mode 100644
index 0000000..fe4197f
--- /dev/null
+++ b/src/python-generator/core.clj
@@ -0,0 +1,281 @@
+(ns python-generator.core
+  (:require
+   [cheshire.core]
+   [clojure.java.io :as io]
+   [clojure.string :as str]
+   [edamame.core :as e]))
+
+(def dir "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/test_dir/element")
+(def dirResource "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/test_dir/resource")
+
+(def primitives-string #{"dateTime" "xhtml" "Distance" "time" "date" "string" "uuid" "oid" "id" "Dosage" "Duration" "instant" "Count" "decimal" "code" "base64Binary" "unsignedInt" "url" "markdown" "uri" "positiveInt"  "canonical" "Age" "Timing"})
+(def elements #{"HumanName" "Signature" "Range" "Coding" "Attachment" "BackboneElement" "Address" "Money" "Period" "Expression" "TriggerDefinition" "Contributor" "Identifier" "Extension" "Quantity" "RelatedArtifact" "Ratio" "UsageContext" "ContactPoint" "Narrative" "Meta" "SampledData" "Annotation" "Reference" "CodeableConcept" "ContactDetail" "ParameterDefinition" "DataRequirement"})
+
+(defn escape-keyword [word]
+  (if (.contains #{"class", "global", "for", "import"} word) (str word "_") word))
+
+(defn load-structure-list [path]
+  (with-open [rdr (-> path
+                      (io/input-stream)
+                      (java.util.zip.GZIPInputStream.)
+                      (io/reader))]
+    (->> rdr
+         line-seq
+         (mapv (fn [json-row]
+                 (cheshire.core/parse-string json-row keyword))))))
+
+(defn string-interpolation [left, right, string]
+  (str left, string, right))
+
+(defn create-on-missing [dir]
+  (when-not (.exists (io/file (str dir)))
+    (.mkfile (io/file (str dir)))))
+
+(defn get-resource-name [reference]
+  (last (str/split (str reference) #"/")))
+
+(defn open-for-write [text, directory, filename]
+  (create-on-missing directory)
+  (with-open [writer (io/writer (io/file directory (str (get-resource-name filename) ".py")))] (.write writer text)))
+
+
+(defn get-parent [base-reference]
+  (->> (get-resource-name base-reference)
+       (string-interpolation "(" ")")))
+
+(defn wrap-vector [string]
+  (string-interpolation "list[", "]", string))
+
+(defn wrap-optional [string]
+  (string-interpolation "Optional[", "]", string))
+
+(defn get-type [type]
+  (cond
+    (= type "boolean") "bool"
+    (= type "integer") "int"
+    (.contains primitives-string type) "str"
+    :else type))
+
+(defn derive-basic-type [type]
+  (-> (get-resource-name type)
+      (get-type)))
+
+(defn append-default-none [string] (str string " = None"))
+(defn append-default-vector [string] (str string " = []"))
+
+(defn transform-element [element required]
+  (->> (derive-basic-type (:type element))
+       ((if (:array element) wrap-vector str))
+       ((if (and (not required) (not (:array element))) wrap-optional str))
+       ((if (and (not required) (not (:array element))) append-default-none str))
+       ((if (and (not required) (:array element)) append-default-vector str))))
+
+(defn map-to-vector [definition]
+  (->> (seq (:elements definition))
+       (filter (fn [[_, v]] (not (contains? v :choices))))))
+
+(defn trans [required, [k, v]]
+  (str "\t" (escape-keyword (name k)) ": " (transform-element v (.contains required (name k)))))
+
+(defn impr [[_, v]]
+  (let [type (derive-basic-type (:type v))]
+    (if (.contains elements type) type nil)))
+
+
+(defn transform-elements-to-types [elements, required]
+  (reduce (fn [acc, item]
+            (hash-map :elements (conj (:elements acc) (trans required item))
+                      :imports (conj (:imports acc) (impr item)))) (hash-map :elements [] :imports []) elements))
+
+(filter boolean [nil, nil, "3"])
+
+(defn ttt [elements]
+  (clojure.string/join (map (fn [item] (str "from element import " item "\n")), elements)))
+
+(defn create-class [elements, definition]
+  (println (str "class " (get-resource-name (:type definition))))
+  (->  (filter boolean (:imports elements))
+       (ttt)
+       (str "\n")
+       (str "from fhir_basic import Element\n\n")
+       (str "from typing import Optional, Any\n\n\n")
+       (str "class " (get-resource-name (:type definition)) "Origin" (get-parent (:base definition)) ":\n")
+       (str (clojure.string/join "\n" (:elements elements)) "\n\n")))
+
+
+;; (fn [[k, v]] (str "\t" (escape-keyword (name k)) ": " (transform-element v (.contains (or (:required definition) []) (name k)))))
+;; (map (fn [[k, v]] (str "\t" (escape-keyword (name k)) ": " (transform-element v (.contains (or (:required definition) []) (name k))))))
+;; (str (clojure.string/join "\n" (prepare-data definition)) "\n\n")
+
+(defn combine-class-by-definition [definition]
+  (-> (map-to-vector definition)
+      (transform-elements-to-types (or (:required definition) []))
+      (create-class definition)
+      (str "class " (get-resource-name (:type definition)) "(" (get-resource-name (:type definition)) "Origin)" ": pass\n")
+      (open-for-write dir (clojure.string/lower-case (:type definition)))))
+
+(defn combine-class-by-definition2 [definition]
+  (-> (map-to-vector definition)
+      (transform-elements-to-types (or (:required definition) []))
+      (create-class definition)
+      (str "class " (get-resource-name (:type definition)) "(" (get-resource-name (:type definition)) "Origin)" ": pass\n")
+      (open-for-write dirResource (clojure.string/lower-case (:type definition)))))
+
+#_(defn filter-domain-resources [path]
+    (->> path
+         (parse-ndjson-gz)
+         (filter #(= "specialization" (:derivation %)))
+         (filter #(str/includes? (or (:base %) "") "Element"))
+         (filter #(contains? % :elements))
+         #_(filter #(.contains ["CodeableConcept", "Period"] (get-resource-name (:type %)))) ;; Patient
+         (map test-fun)
+         (clojure.string/join "\n\n")
+         (str "\textension: list[Any] = []\n\n")
+         (str "\tid: Optional[str] = None\n")
+         (str "class Element(BaseModel):\n")
+         (str "from pydantic import BaseModel\n")
+         (str "from typing import Optional, Any\n")
+         (open-for-write dir "S/types")))
+
+#_(defn filter-resources [path]
+    (->> path
+         (parse-ndjson-gz)
+         (filter #(= "specialization" (:derivation %)))
+         (filter #(str/includes? (or (:base %) "") "DomainResource"))
+      ;;  (filter #(str/includes? (or (:type %) "") "Appointment"))
+         (filter #(contains? % :elements))
+         (map test-fun)
+         (clojure.string/join "\n\n")
+         (str "from typing import Optional, Any\n")
+         (open-for-write dir "resources")))
+
+#_(defn get-primitive-structure-definitions [structures]
+    (->> structures
+         (filter #(not (and (contains? % :from) (contains? % :to))))
+         (filter #(not (contains? % :derivation)))
+         (filter #(not (contains? % :base)))
+         (filter #(not (contains? % :elements)))))
+
+
+
+(defn get-resource-structure-definition [structures]
+  (->> structures
+       (filter #(str/includes? (or (:base %) "") "/Resource"))
+       (filter #(= "specialization" (:derivation %)))))
+
+(defn get-domain-structure-definition [structures]
+  (->> structures
+       (filter #(str/includes? (or (:base %) "") "/DomainResource"))
+       (filter #(= "specialization" (:derivation %)))))
+
+;; here can be values without elements that inherits from element
+(defn get-element-structure-definition [structures]
+  (->> structures
+       (filter #(str/includes? (or (:base %) "") "Element"))
+       (filter #(not (str/includes? (or (:base %) "") "BackboneElement")))
+       (filter #(not (str/includes? (or (:base %) "") "ElementDefinition")))
+       (filter #(contains? % :elements))))
+
+#_(defn get-specialization [structures]
+    (->> structures
+         (filter #(= "specialization" (:derivation %)))))
+
+#_(defn get-constraint [structures]
+    (->> structures
+         (filter #(= "constraint" (:derivation %)))))
+
+#_(defn get-misc [structures]
+    (->> structures
+         (filter #(not (and (contains? % :from) (contains? % :to))))
+         (filter #(not (= "constraint" (:derivation %))))
+         (filter #(not (= "specialization" (:derivation %))))))
+
+
+(defn construct-basic [structures]
+  (->> structures
+       (filter #(not (contains? % :derivation)))
+       (filter #(not (contains? % :base)))
+       (filter #(contains? % :elements))
+       structures))
+
+#_(defn test [path]
+    (->> (load-structure-list path)
+         (construct-basic)
+         (map test-fun)
+         (clojure.string/join "\n\n")
+         (str "from typing import Optional, Any\n\n\n")
+         (open-for-write dir "fhir_basic")))
+
+(defn construct-elements [structures]
+  (->> structures
+       (filter #(str/includes? (or (:base %) "") "Element"))
+       (filter #(not (str/includes? (or (:base %) "") "BackboneElement")))
+       (filter #(not (str/includes? (or (:base %) "") "ElementDefinition")))
+       (filter #(contains? % :elements))))
+
+
+;; (defn effect-save-element-names [elements]
+;;   (->> (map (fn [item]  (get-resource-name (:type item))) elements)
+;;        (update-elements))
+;;   elements)
+
+(defn step1 [path]
+  (->> (load-structure-list path)
+       (construct-elements)
+       (count)
+       #_(effect-save-element-names)
+       #_(map combine-class-by-definition)
+       #_(extract-keys)
+       #_(map test-fun)
+       #_(clojure.string/join "\n\n")
+       #_(str "from fhir_basic import Element\n\n\n")
+       #_(str "from typing import Optional, Any\n")
+       #_(open-for-write dir "fhir_element")))
+
+
+
+#_(defn test2 [path]
+    (->> path
+         (parse-ndjson-gz)
+         (get-resource-structure-definition)
+         (map test-fun)
+         (clojure.string/join "\n\n")
+         (str "from fhir_basic import Resource\n\n\n")
+         (str "from typing import Optional, Any\n")
+         (open-for-write dir "fhir_resource")))
+
+(defn doallmap [elements]
+  (doall (map combine-class-by-definition2 elements)))
+
+(defn test3 [path]
+  (->> (load-structure-list path)
+       (get-domain-structure-definition)
+       (doallmap)
+       #_(clojure.string/join "\n\n")
+       #_(str "from fhir_resource import DomainResource\n\n\n")
+       #_(str "from typing import Optional, Any\n")
+       #_(open-for-write dir "domain_resource")))
+
+;;  (total) ;; 1968
+;;  (get-trash) ;; 1310 - ignore
+;;  (get-specialization) ;; 208
+;;  (get-constraint) ;; 441 - ignore
+;;  (get-base-structure-definitions) ;; 2 Resource Element
+;;  (misc) ;; 9
+
+;; basic 
+
+
+;; (defn elements-index []
+;;   (-> (map (fn [element] (str "from element." (clojure.string/lower-case element) " import " element "\n")) elements)
+;;       (clojure.string/join)
+;;       (open-for-write "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/test_dir" "element")))
+
+;; (elements-index)
+;; (test "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/fhir-schema/hl7.fhir.r4.core#4.0.1/package.ndjson.gz")
+;; (step1 "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/fhir-schema/hl7.fhir.r4.core#4.0.1/package.ndjson.gz")
+(test3 "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/fhir-schema/hl7.fhir.r4.core#4.0.1/package.ndjson.gz")
+
+;; (test2 "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/fhir-schema/hl7.fhir.r4.core#4.0.1/package.ndjson.gz")
+;; (test3 "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/fhir-schema/hl7.fhir.r4.core#4.0.1/package.ndjson.gz")
+