How to upload template in Apache Nifi using Python request

[#1]

The Error getting: ('Unauthorized', 401)
I tried this method according to the nifi documentaion but getting this

The Python Code Metioned Below

import requests
import urllib3
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)


class PyNifi:
    def __init__(self, host: str, port: str, username: str, password: str):
        self.host = host.strip()
        self.port = port.strip()
        self.username = username.strip()
        self.password = password.strip()
        self._Secure_Authorization_Bearer = None
        self.__access_status__ = None
        self.__Secure_Request_Token = None

    def __str__(self):
        self.__access_status__ = self.__access__()
        return self.__access_status__

    def __access__(self):

        if self.__access_status__:
            return self.__access_status__

        if not self._Secure_Authorization_Bearer or not self.__Secure_Request_Token:
            self.access_token()

        access_url = f"https://{self.host}:{self.port}/nifi-api/access"

        cookies = {
            '__Secure-Request-Token': self.__Secure_Request_Token,
            '__Secure-Authorization-Bearer': self._Secure_Authorization_Bearer
        }

        response_ = requests.request("GET", access_url, cookies=cookies, verify=False)
        return response_.text

    def get_template_details(self):

        self.access_token()

        access_url = f"https://{self.host}:{self.port}/nifi-api/flow/templates"

        headers = {'Content-Type': 'multipart/form-data'}

        cookies = {
            '__Secure-Request-Token': self.__Secure_Request_Token,
            '__Secure-Authorization-Bearer': self._Secure_Authorization_Bearer
        }

        response_ = requests.request("GET", access_url, cookies=cookies, headers=headers, verify=False)
        return response_.json()

    def access_token(self):

        if self._Secure_Authorization_Bearer:
            return self._Secure_Authorization_Bearer

        token_url = f"https://{self.host}:{self.port}/nifi-api/access/token"
        payload = f'username={self.username}&password={self.password}'

        headers = {'Content-Type': 'application/x-www-form-urlencoded'}

        response_ = requests.request("POST", token_url, headers=headers, data=payload, verify=False)

        self._Secure_Authorization_Bearer = response_.text
        self.__Secure_Request_Token = dict(response_.cookies).get('__Secure-Request-Token')

        return response_.text

    def replace_template(self, id_: str):

        access_url = f"https://{self.host}:{self.port}/nifi-api/process-groups/replace-requests/{id_}"

        headers = {
            # 'Content-Type': 'multipart/form-data',
            '__Secure-Request-Token': self.__Secure_Request_Token,
            '__Secure-Authorization-Bearer': self._Secure_Authorization_Bearer
        }

        response_ = requests.request("GET", access_url, headers=headers, verify=False)
        return response_.text

    def upload_template(self, group_id: str, template_path: str):

        if not self._Secure_Authorization_Bearer:
            self._Secure_Authorization_Bearer = self.access_token()

        upload_url = f"https://{self.host}:{self.port}/nifi-api/process-groups/{group_id}/templates/upload"

        headers = {
            'Content-Type': 'multipart/form-data',
            '__Secure-Request-Token': self.__Secure_Request_Token,
            '__Secure-Authorization-Bearer': self._Secure_Authorization_Bearer
        }

        with open(template_path, 'rb') as fp:
            binary_file = fp.read()

        template = {"template": binary_file}

        response_ = requests.request(
            "POST",
            upload_url,
            headers=headers,
            files=template,
            verify=False
        )
        return response_.text, response_.status_code


nifi_api = PyNifi(
    host='localhost',
    port='8443',
    username='leearun0',
    password='asdh54f54fs64df546f'
)

template = nifi_api.get_template_details()

group_id = template.get("templates")[0].get("template").get("groupId")
template_path = '/home/arunkrishnan/Downloads/dataflow-minio-temp.xml'

response = nifi_api.upload_template(
    group_id=group_id,
    template_path=template_path
)


print(response)
print(template)
print(group_id)

The OutPut of the code given above

('Unauthorized', 401)

{'templates': [{'id': '084f477f-4fdf-4ce1-b709-958d90f4eef0', 'permissions': {'canRead': True, 'canWrite': True}, 'template': {'uri': 'https://localhost:8443/nifi-api/templates/084f477f-4fdf-4ce1-b709-958d90f4eef0', 'id': '084f477f-4fdf-4ce1-b709-958d90f4eef0', 'groupId': '4338f14c-0189-1000-2cb1-5236335cf37a', 'name': 'Training-01-PDP-data-to-plpgsql', 'description': 'insert product data into postgres database in local machine', 'timestamp': '07/12/2023 14:13:33 IST', 'encoding-version': '1.3'}}], 'generated': '19:18:04 IST'}

4338f14c-0189-1000-2cb1-5236335cf37a

The response of the uploading function is : ('Unauthorized', 401)
anyone experianced before these like of response??