i wanted to know if this part of the code

Code:
    wvdecrypt = WvDecrypt(init_data_b64=pssh, cert_data_b64=cert_b64, device=deviceconfig.device_android_generic)
    challengeb64 = str(b64encode(wvdecrypt.get_challenge()),"utf-8")
    data = {"token":token,"device_id":device_id,"widevineBody":challengeb64}              
    widevine_license = requests.post(url=lic_url, json=data, headers=headers_claro.headers)
    print(widevine_license.request.body)

just extracts the license: part from the json

eg: "license": "CAIS7wMKNAoQD4nw1e+M......."
Code:
{
  "status": "OK",
  "status_message": "",
  "license": "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",
  "license_metadata": {
    "content_id": "/1kPNnXsmz7KvI20okFm1dg=",
    "license_type": "STREAMING",
    "request_type": "NEW"
  },
  "supported_tracks": [
    {
      "type": "HD",
      "key_id": "4D4zREmCWAa5wBHbuvo1ew=="
    },
    {
      "type": "SD",
      "key_id": "yMSHZh/VUui3P4TKueabJw=="
    },
    {
      "type": "AUDIO",
      "key_id": "MA9DxF7gUqeYCLurUG8DOA=="
    }
  ],
  "make": "Google",
  "model": "ChromeCDM-Win-x86-10",
  "security_level": 3,
  "internal_status": 0,
  "session_state": {
    "license_id": {
      "request_id": "D4nw1e+MLKSA9K56a35uqw==",
      "session_id": "D4nw1e+MLKSA9K56a35uqw==",
      "purchase_id": "",
      "type": "STREAMING",
      "version": 0,
      "original_rental_duration_seconds": 0,
      "original_playback_duration_seconds": 0,
      "original_start_time_seconds": 1677007750
    },
    "signing_key": "iDluVaXesVuAO1xaS96vVbdWV74rPGA36VklNB/SSzI7LGYdY2jA3m7mEItfzw/MCX6iis3IQpfG6y2h9QJOrg==",
    "keybox_system_id": 27174,
    "license_counter": 0
  },
  "drm_cert_serial_number": "NjAxMWZjYTI4MzI4YzMwOGYyMmVmZDMxN2U5NzI3NDI=",
  "device_whitelist_state": "DEVICE_NOT_WHITELISTED",
  "message_type": "LICENSE",
  "platform": "windows",
  "device_state": "RELEASED",
  "pssh_data": {
    "key_id": [],
    "content_id": "/1kPNnXsmz7KvI20okFm1dg="
  },
  "client_max_hdcp_version": "HDCP_V1",
  "client_info": [
    {
      "name": "architecture_name",
      "value": "x86-32"
    },
    {
      "name": "company_name",
      "value": "Google"
    },
    {
      "name": "model_name",
      "value": "ChromeCDM"
    },
    {
      "name": "platform_name",
      "value": "Windows"
    },
    {
      "name": "widevine_cdm_version",
      "value": "4.10.2557.0"
    }
  ],
  "platform_verification_status": "PLATFORM_SECURE_STORAGE_SOFTWARE_VERIFIED",
  "content_owner": "xstreamalt",
  "content_provider": "xstreamalt",
  "system_id": 27174,
  "oem_crypto_api_version": 16,
  "resource_rating_tier": 0,
  "service_version_info": {
    "license_sdk_version": "17.4.0 Built on Jan 18 2023 17:31:32 (1674091850)",
    "license_service_version": "widevine.license-server_20230110.05_p1"
  },
  "soc": "x86",
  "client_capabilities": {
    "session_token": true,
    "video_resolution_constraints": true,
    "supported_key_type": []
  }
}

it would be great if you could help