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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def hdfs_connect( host='localhost', port=50070, protocol='webhdfs', use_https='default', auth_mechanism='NOSASL', verify=True, session=None, **kwds ):
 """Connect to HDFS. Parameters host : str Host name of the HDFS NameNode port : int NameNode's WebHDFS port protocol : str, The protocol used to communicate with HDFS. The only valid value is ``'webhdfs'``. use_https : bool Connect to WebHDFS with HTTPS, otherwise plain HTTP. For secure authentication, the default for this is True, otherwise False. auth_mechanism : str Set to NOSASL or PLAIN for non-secure clusters. Set to GSSAPI or LDAP for Kerberos-secured clusters. verify : bool Set to :data:`False` to turn off verifying SSL certificates. session : Optional[requests.Session] A custom :class:`requests.Session` object. Notes ----- Other keywords are forwarded to HDFS library classes. Returns ------- WebHDFS """

    import requests

    if session is None:
        session = requests.Session()
    session.verify = verify
    if auth_mechanism in ('GSSAPI', 'LDAP'):
        if use_https == 'default':
            prefix = 'https'
        else:
            prefix = 'https' if use_https else 'http'
        try:
            import requests_kerberos  # noqa: F401
        except ImportError:
            raise IbisError(
                "Unable to import requests-kerberos, which is required for "
                "Kerberos HDFS support. Install it by executing `pip install "
                "requests-kerberos` or `pip install hdfs[kerberos]`."
            )
        from hdfs.ext.kerberos import KerberosClient

        # note SSL
        url = '{0}://{1}:{2}'.format(prefix, host, port)
        kwds.setdefault('mutual_auth', 'OPTIONAL')
        hdfs_client = KerberosClient(url, session=session, **kwds)
    else:
        if use_https == 'default':
            prefix = 'http'
        else:
            prefix = 'https' if use_https else 'http'
        from hdfs.client import InsecureClient

        url = '{}://{}:{}'.format(prefix, host, port)
        hdfs_client = InsecureClient(url, session=session, **kwds)
    return WebHDFS(hdfs_client)