diff --git a/src/python-generator/helpers.clj b/src/python-generator/helpers.clj
index e375359..c2cb7ad 100644
--- a/src/python-generator/helpers.clj
+++ b/src/python-generator/helpers.clj
@@ -2,6 +2,7 @@
   (:require
    [python-generator.extractor]
    [cheshire.core]
+   [taoensso.nippy :as nippy]
    [clojure.java.io :as io]
    [clojure.string :as str]))
 
@@ -81,6 +82,10 @@
          (mapv (fn [json-row]
                  (cheshire.core/parse-string json-row keyword))))))
 
+(defn parse-nippy [path]
+  (->> (io/file path)
+       (nippy/thaw-from-file)))
+
 (defn side-effect-map [method, list] (doall (map method list)))
 
 (defn create-on-missing [dir]
diff --git a/src/python-generator/profile-extractor.clj b/src/python-generator/profile-extractor.clj
new file mode 100644
index 0000000..56ec3f1
--- /dev/null
+++ b/src/python-generator/profile-extractor.clj
@@ -0,0 +1,63 @@
+(ns python-generator.profile-extractor
+  (:require [cheshire.core] [clojure.string :as str]))
+
+
+(defn filter-base [reduce-keys]
+  (->> (reduce-keys :structures)
+       (filter #(not (and (contains? % :from) (contains? % :to))))
+       (filter #(not (contains? % :derivation)))
+       (filter #(not (contains? % :base)))
+       (filter #(contains? % :elements))
+       (map (fn [item] [(item :fqn) item]))
+       (into {})
+       (assoc {} :base)
+       (hash-map :structures (reduce-keys :structures) :accumulator)))
+
+(defn filter-element [reduce-keys]
+  (->> (reduce-keys :structures)
+       (filter #(str/includes? (or (:base %) "") "Element"))
+       (filter #(not (str/includes? (or (:base %) "") "BackboneElement")))
+       (filter #(not (str/includes? (or (:base %) "") "ElementDefinition")))
+       (filter #(contains? % :elements))
+       (map (fn [item] [(item :fqn) item]))
+       (into {})
+       (assoc (reduce-keys :accumulator) :element)
+       (hash-map :structures (reduce-keys :structures) :accumulator)))
+
+(defn filter-backbone-element [reduce-keys]
+  (->> (reduce-keys :structures)
+       (filter #(str/includes? (or (:base %) "") "/BackboneElement"))
+       (filter #(= "specialization" (:derivation %)))
+       (map (fn [item] [(item :fqn) item]))
+       (into {})
+       (assoc (reduce-keys :accumulator) :backbone-element)
+       (hash-map :structures (reduce-keys :structures) :accumulator)))
+
+(defn filter-domain-resource [reduce-keys]
+  (->> (reduce-keys :structures)
+       (filter #(str/includes? (or (:base %) "") "/DomainResource"))
+       (filter #(= "specialization" (:derivation %)))
+       (map (fn [item] [(item :fqn) item]))
+       (into {})
+       (assoc (reduce-keys :accumulator) :domain-resource)
+       (hash-map :structures (reduce-keys :structures) :accumulator)))
+
+(defn filter-resource [reduce-keys]
+  (->> (reduce-keys :structures)
+       (filter #(str/includes? (or (:base %) "") "/Resource"))
+       (filter #(= "specialization" (:derivation %)))
+       (map (fn [item] [(item :fqn) item]))
+       (into {})
+       (assoc (reduce-keys :accumulator) :resource)
+       (hash-map :structures (reduce-keys :structures) :accumulator)))
+
+(defn filter-constraint [reduce-keys]
+  (->> (reduce-keys :structures)
+       (filter #(= "constraint" (:derivation %)))
+       (filter #(not (= "hl7.fhir.r4.core#4.0.1/Extension" (:base %))))
+       (map (fn [item] [(item :fqn) item]))
+       (into {})
+       (assoc (reduce-keys :accumulator) :constraint)
+       (hash-map :structures (reduce-keys :structures) :accumulator)))
+
+
diff --git a/src/python-generator/profile-helpers.clj b/src/python-generator/profile-helpers.clj
new file mode 100644
index 0000000..b65ddb9
--- /dev/null
+++ b/src/python-generator/profile-helpers.clj
@@ -0,0 +1,98 @@
+(ns python-generator.profile-helpers
+  (:require
+   [python-generator.extractor]
+   [cheshire.core]
+   [taoensso.nippy :as nippy]
+   [clojure.java.io :as io]
+   [clojure.string :as str]))
+
+
+;; TODO: do not hardcode
+(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"})
+(def backbone-elements #{"Population" "Timing" "MarketingStatus" "SubstanceAmount" "ProductShelfLife" "ProdCharacteristic" "Dosage" "ElementDefinition"})
+(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"})
+
+(defn uppercase-first-letter [string]
+  (str (str/upper-case (first string)) (subs string 1)))
+
+(defn escape-keyword [word]
+  (if (.contains #{"class", "from", "assert", "global", "for", "import"} word) (str word "_") word))
+
+(defn string-interpolation [left, right, string]
+  (str left, string, right))
+
+(defn wrap-vector [string]
+  (string-interpolation "list[", "]", string))
+
+(defn wrap-optional [string]
+  (string-interpolation "Optional[", "]", string))
+
+(defn get-resource-name [reference]
+  (last (str/split (str reference) #"/")))
+
+(defn get-type [name type]
+  (cond
+    (= type "BackboneElement") (str "" (uppercase-first-letter name))
+    (= type "boolean") "bool"
+    (= type "integer") "int"
+    (= type "")        "str"
+    (.contains primitives-string type) "str"
+    :else (or type "str")))
+
+(defn derive-basic-type [name element]
+  (get-type name (get-resource-name (:type element))))
+
+(defn append-default-none [string] (str string " = None"))
+(defn append-default-vector [string] (str string " = []"))
+
+(defn transform-element [name element required]
+  (->> (derive-basic-type name 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 elements-to-vector [definition]
+  (->> (seq (:elements definition))
+       (filter (fn [[_, v]] (not (contains? v :choices))))))
+
+(defn get-parent [base-reference]
+  (->> (get-resource-name base-reference)
+       (string-interpolation "(" ")")))
+
+(defn collect-types [parent_name, required, [k, v]]
+  (hash-map :name (escape-keyword (name k)) :base parent_name :value (transform-element (str parent_name "_" (uppercase-first-letter (name k))) v (.contains required (name k)))))
+
+(defn resolve-backbone-elements [[k, v]]
+  (if (= (get-resource-name (:type v)) "BackboneElement") (vector k, v) (vector)))
+
+(defn get-typings-and-imports [parent_name, required, data]
+  (reduce (fn [acc, item]
+            (hash-map :elements (conj (:elements acc) (collect-types parent_name required item))
+                      :backbone-elements (conj (:backbone-elements acc) (resolve-backbone-elements item))))
+          (hash-map :elements [] :backbone-elements []) data))
+
+(defn parse-ndjson-gz [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 parse-nippy [path]
+  (->> (io/file path)
+       (nippy/thaw-from-file)))
+
+(defn side-effect-map [method, list] (doall (map method list)))
+
+(defn create-on-missing [dir]
+  (when-not (.exists (io/file dir)) (.mkdir (io/file dir))))
+
+(defn write-to-file [directory, filename, text]
+  (create-on-missing directory)
+  (with-open [writer (io/writer (io/file directory (str filename ".py")))] (.write writer text)))
+
+;; (get-resource-name filename)
\ No newline at end of file
diff --git a/src/python-generator/profile-parser.clj b/src/python-generator/profile-parser.clj
new file mode 100644
index 0000000..1a89811
--- /dev/null
+++ b/src/python-generator/profile-parser.clj
@@ -0,0 +1,146 @@
+(ns python-generator.profile-parser
+  (:require
+   [python-generator.profile-extractor :as ext]
+   [python-generator.profile-helpers :as help]
+   [python-generator.profile-resources :as gen]
+   [cheshire.core]
+   [clojure.string :as str]))
+
+;; (str parent_name "_" (help/uppercase-first-letter (name property_name)))
+
+(defn compile-backbone [parent_name property_name definition]
+  (let [name "NaMe"
+        data (help/get-typings-and-imports name (or (:required definition) []) (help/elements-to-vector definition))
+        backbone-elements (filter (fn [item] (> (count item) 0)) (:backbone-elements data))]
+    (conj data (hash-map :backbone-elements (if (= (count backbone-elements) 0) [] (map (fn [[k, v]] (compile-backbone name k v)) backbone-elements))))))
+
+(defn test [name data]
+  (->> (filter (fn [item] (> (count item) 0)) (:backbone-elements data))
+       (map (fn [[k, v]] (compile-backbone name k v)))
+       (hash-map :backbone-elements)
+       (conj data)))
+
+
+
+;; (helpers/get-resource-name (:type definition))
+
+(defn attach-parent-data [parent a context child]
+  (if (nil? parent) child (conj child (hash-map :elements (concat (get-in context [:classes parent a :elements]) (:elements child))))))
+
+(defn compile-elements [property parent context]
+  (->> (map (fn [[name definition]]
+              (->> (help/elements-to-vector definition)
+                   (help/get-typings-and-imports (:type definition) (or (:required definition) []))
+                   (test "ktulh-ftagn")
+                   (attach-parent-data parent (:base definition) context)
+                   (conj (hash-map :name name :source (:base definition)))
+                   (hash-map name))) (property (:accumulator context)))
+       #_(apply merge)))
+
+
+(defn group-by [ig]
+  (->> (ext/filter-base ig)
+       (ext/filter-element)
+       (ext/filter-resource)
+       (ext/filter-backbone-element)
+       (ext/filter-domain-resource)
+       (ext/filter-constraint)))
+
+(defn c-base [context]
+  (->> context
+       (compile-elements :base nil)
+       (hash-map :base)
+       (hash-map :classes)
+       (conj context)))
+
+(defn c-resource [context]
+  (->> context
+       (compile-elements :resource :base)
+       (hash-map :resource)
+       (conj (:classes context))
+       (hash-map :classes)
+       (conj context)))
+
+(defn c-domain-resource [context]
+  (->> context
+       (compile-elements :domain-resource :resource)
+       (hash-map :domain-resource)
+       (conj (:classes context))
+       (hash-map :classes)
+       (conj context)))
+
+(defn c-constraint [context]
+  (->> context
+       (compile-elements :constraint :domain-resource)
+       (hash-map :constraint)
+       (conj (:classes context))
+       (hash-map :classes)
+       (conj context)))
+
+(defn compile [context]
+  (->> context
+       (c-base)
+       (c-resource)
+       (c-domain-resource)
+       (c-constraint)))
+
+(defn compile-profiles []
+  (->> (hash-map :structures (help/parse-ndjson-gz "/Users/gena.razmakhnin/Documents/aidbox-sdk-js/fhir-schema/hl7.fhir.r4.core#4.0.1/package.ndjson.gz"))
+       (group-by)
+       (compile)
+       (:classes)
+       (:domain-resource)))
+
+(compile-profiles)
+
+
+
+
+
+
+
+
+;; (filter (fn [item] (:elements item)) [{:elements {:a {:type 1} :b {:type 2} :c {:type 2}}}])
+
+#_(->> (helpers/parse-ndjson-gz "/Users/gena.razmakhnin/Documents/aidbox-python-tooklit/fhir-schema/hl7.fhir.r4.core#4.0.1_package.ndjson.gz")
+       (filter #(= "constraint" (:derivation %)))
+       (filter (fn [item] ()))
+       (filter (fn [item]
+                 (some
+                  (fn [[_ value]] (and (= "hl7.fhir.r4.core#4.0.1/CodeableConcept" (:type value)) (contains? value :binding)))
+                  (:elements item)))))
+
+;; (map (fn [[key value]] key) {"hello" 3 "hello2" 3})
+;; (type (hash-map "hello" 3 "hello2" 3))
+;; ((hash-map "hello" 1 "hello2" 2) "hello2")
+
+#_(->> (helpers/parse-nippy "/Users/gena.razmakhnin/Documents/aidbox-python-tooklit/fhir-schema/hl7.fhir.r4.core#4.0.1_terminology-index.nippy")
+       #_(:valuesets)
+       (:codesystems)
+       #_(map (fn [[key value]] value))
+       #_(filter (fn [[key value]] (= key "http://terminology.hl7.org/CodeSystem/v2-0334")))
+       ((fn [map] (map "http://loinc.org"))))
+
+;; (map (fn [item] (print item)))
+;; (keyword "http://hl7.org/fhir/supplydelivery-status")
+;; (keyword "http://hl7.org/fhir/ValueSet/ldlcholesterol-codes")
+
+
+;; :fhirVersions ["4.0.1"]
+;; :name "hl7.fhir.r4.core"
+;; :type "fhir.core"
+;; :version "4.0.1"
+;; :dependencies []
+
+;; :fhirVersions ["4.0.1"]
+;; :name "hl7.fhir.us.core"
+;; :type "IG"
+;; :version "5.0.1"
+;; :dependencies [":hl7.fhir.r4.core#4.0.1" ":hl7.terminology.r4#3.1.0" ":hl7.fhir.uv.bulkdata#2.0.0" ":hl7.fhir.uv.smart-app-launch#2.0.0" ":us.nlm.vsac#0.7.0" ":hl7.fhir.uv.sdc#3.0.0"]
+
+;; :fhirVersions ["4.0.1"]
+;; :name "hl7.fhir.us.mcode"
+;; :type "IG"
+;; :version "3.0.0"
+;; :dependencies [":hl7.fhir.r4.core#4.0.1" ":hl7.terminology.r4#5.3.0" ":hl7.fhir.us.core#5.0.1" ":hl7.fhir.uv.genomics-reporting#2.0.0" ":hl7.fhir.uv.extensions#1.0.0"]
+
diff --git a/src/python-generator/profile-resources.clj b/src/python-generator/profile-resources.clj
new file mode 100644
index 0000000..5728504
--- /dev/null
+++ b/src/python-generator/profile-resources.clj
@@ -0,0 +1,37 @@
+(ns python-generator.profile-resources
+  (:require
+   [cheshire.core]
+   [clojure.string :as str]
+   [python-generator.extractor :as extractors]
+   [python-generator.profile-helpers :as help]))
+
+(defn filter-backbone-elements [data]
+  (filter (fn [item] (> (count item) 0)) (:backbone-elements data)))
+
+(defn compile-backbone [parent_name property_name definition]
+  (let [name (str parent_name "_" (help/uppercase-first-letter (name property_name)))
+        data (help/get-typings-and-imports name (or (:required definition) []) (help/elements-to-vector definition))
+        backbone-elements (filter-backbone-elements data)]
+    (->> (str (clojure.string/join "\n" (:elements data)) "\n\n")
+         (str "class " name "(BackboneElement):\n")
+         (str (if (= (count backbone-elements) 0) (str) (str/join (map (fn [[k, v]] (str (compile-backbone name k v))) backbone-elements)))))))
+
+(defn test [name data]
+  (->> (filter (fn [item] (> (count item) 0)) (:backbone-elements data))
+       (map (fn [[k, v]] (str (compile-backbone name k v))))
+       (str/join)))
+
+(defn combine-file [definition, data]
+  (->> (str (clojure.string/join "\n" (:elements data)) "\n\n")
+       (str "class " (help/get-resource-name (:type definition)) (help/get-parent (:base definition)) ":\n")
+       #_(str (test (help/get-resource-name (:type definition)) data))
+       #_(str "from ..base import *\n\n")
+       #_(str "from typing import Optional\n")))
+
+(defn compile-single-class [directory]
+  (fn [[_ definition]]
+    (->> (help/elements-to-vector definition)
+         (help/get-typings-and-imports (help/get-resource-name (:type definition)) (or (:required definition) []))
+         #_(combine-file definition)
+         #_(str/join))))
+