diff --git a/Project_Model/UML/pipeline-utils.excalidraw.json b/Project_Model/UML/pipeline-utils.excalidraw.json
new file mode 100644
index 0000000..c174b6d
--- /dev/null
+++ b/Project_Model/UML/pipeline-utils.excalidraw.json
@@ -0,0 +1,162 @@
+{
+  "type": "excalidraw",
+  "version": 2,
+  "source": "https://marketplace.visualstudio.com/items?itemName=pomdtr.excalidraw-editor",
+  "elements": [
+    {
+      "id": "MR81S4quQLdw7ZYl2sbpi",
+      "type": "text",
+      "x": 309,
+      "y": 131,
+      "width": 649,
+      "height": 200,
+      "angle": 0,
+      "strokeColor": "#1e1e1e",
+      "backgroundColor": "transparent",
+      "fillStyle": "solid",
+      "strokeWidth": 2,
+      "strokeStyle": "solid",
+      "roughness": 1,
+      "opacity": 100,
+      "groupIds": [],
+      "frameId": null,
+      "index": "a0",
+      "roundness": null,
+      "seed": 194891189,
+      "version": 243,
+      "versionNonce": 1614205979,
+      "isDeleted": false,
+      "boundElements": null,
+      "updated": 1759680941870,
+      "link": null,
+      "locked": false,
+      "text": "def truncate(seq: list[int], max_length: int, eos_id: int):\n\n    if len(seq) < max_length:\n        return seq\n\n    seq[max_length - 1] = eos_id\n    return seq[:max_length]\n    ",
+      "fontSize": 20,
+      "fontFamily": 8,
+      "textAlign": "left",
+      "verticalAlign": "top",
+      "containerId": null,
+      "originalText": "def truncate(seq: list[int], max_length: int, eos_id: int):\n\n    if len(seq) < max_length:\n        return seq\n\n    seq[max_length - 1] = eos_id\n    return seq[:max_length]\n    ",
+      "autoResize": true,
+      "lineHeight": 1.25
+    },
+    {
+      "id": "nzMSk0NIeEpMYeUQ1UvVw",
+      "type": "text",
+      "x": 309,
+      "y": 420.5,
+      "width": 594,
+      "height": 350,
+      "angle": 0,
+      "strokeColor": "#1e1e1e",
+      "backgroundColor": "transparent",
+      "fillStyle": "solid",
+      "strokeWidth": 2,
+      "strokeStyle": "solid",
+      "roughness": 1,
+      "opacity": 100,
+      "groupIds": [],
+      "frameId": null,
+      "index": "a1",
+      "roundness": null,
+      "seed": 807602389,
+      "version": 533,
+      "versionNonce": 1455522939,
+      "isDeleted": false,
+      "boundElements": null,
+      "updated": 1759681067736,
+      "link": null,
+      "locked": false,
+      "text": "def pad(seq: list[int], max_length: int, pad_id: int):\n\n    if len(seq) > max_length:\n        raise Exception()\n\n    if len(seq) == max_length:\n        return seq\n    \n    SEQ_LEN = len(seq)\n    PAD_LEN = max_length - SEQ_LEN\n    PADDING = [pad_id] * PAD_LEN\n    seq.extend(PADDING)\n    return seq\n    ",
+      "fontSize": 20,
+      "fontFamily": 8,
+      "textAlign": "left",
+      "verticalAlign": "top",
+      "containerId": null,
+      "originalText": "def pad(seq: list[int], max_length: int, pad_id: int):\n\n    if len(seq) > max_length:\n        raise Exception()\n\n    if len(seq) == max_length:\n        return seq\n    \n    SEQ_LEN = len(seq)\n    PAD_LEN = max_length - SEQ_LEN\n    PADDING = [pad_id] * PAD_LEN\n    seq.extend(PADDING)\n    return seq\n    ",
+      "autoResize": true,
+      "lineHeight": 1.25
+    },
+    {
+      "id": "8ONOUf0ArJ5DMtxeM_fvG",
+      "type": "text",
+      "x": 299,
+      "y": 805.5,
+      "width": 473,
+      "height": 150,
+      "angle": 0,
+      "strokeColor": "#1e1e1e",
+      "backgroundColor": "transparent",
+      "fillStyle": "solid",
+      "strokeWidth": 2,
+      "strokeStyle": "solid",
+      "roughness": 1,
+      "opacity": 100,
+      "groupIds": [],
+      "frameId": null,
+      "index": "a2",
+      "roundness": null,
+      "seed": 1323527029,
+      "version": 294,
+      "versionNonce": 567965627,
+      "isDeleted": false,
+      "boundElements": null,
+      "updated": 1759681345616,
+      "link": null,
+      "locked": false,
+      "text": "def mask(\n    seq: list[int], \n    max_bpe_voc_id: int\n    mask_id: int,\n    masking_probability: MaskingProbability\n)",
+      "fontSize": 20,
+      "fontFamily": 8,
+      "textAlign": "left",
+      "verticalAlign": "top",
+      "containerId": null,
+      "originalText": "def mask(\n    seq: list[int], \n    max_bpe_voc_id: int\n    mask_id: int,\n    masking_probability: MaskingProbability\n)",
+      "autoResize": true,
+      "lineHeight": 1.25
+    },
+    {
+      "id": "cpsIEF7OpTuNkcxiggRpa",
+      "type": "text",
+      "x": 997,
+      "y": 703,
+      "width": 330,
+      "height": 150,
+      "angle": 0,
+      "strokeColor": "#1e1e1e",
+      "backgroundColor": "transparent",
+      "fillStyle": "solid",
+      "strokeWidth": 2,
+      "strokeStyle": "solid",
+      "roughness": 1,
+      "opacity": 100,
+      "groupIds": [],
+      "frameId": null,
+      "index": "a3",
+      "roundness": null,
+      "seed": 516363867,
+      "version": 192,
+      "versionNonce": 430327707,
+      "isDeleted": false,
+      "boundElements": null,
+      "updated": 1759681254424,
+      "link": null,
+      "locked": false,
+      "text": "class MaskingProbability:\n\n    + change_token_prob: float\n    + mask_token_prob: float\n    + same_token_prob: float\n    + random_token_prob: float",
+      "fontSize": 20,
+      "fontFamily": 8,
+      "textAlign": "left",
+      "verticalAlign": "top",
+      "containerId": null,
+      "originalText": "class MaskingProbability:\n\n    + change_token_prob: float\n    + mask_token_prob: float\n    + same_token_prob: float\n    + random_token_prob: float",
+      "autoResize": true,
+      "lineHeight": 1.25
+    }
+  ],
+  "appState": {
+    "gridSize": 20,
+    "gridStep": 5,
+    "gridModeEnabled": false,
+    "viewBackgroundColor": "#ffffff"
+  },
+  "files": {}
+}
\ No newline at end of file