Transfer files and directories to remote host.

    files
        A single path or a list of paths to be transferred.

    remote_path
        The path on the remote device where to store the files.

    recursive: ``True``
        Transfer files and directories recursively.

    preserve_times: ``False``
        Preserve ``mtime`` and ``atime`` of transferred files and directories.

    hostname
        The hostname of the remote device.

    port: ``22``
        The port of the remote device.

    username
        The username required for SSH authentication on the device.

    password
        Used for password authentication. It is also used for private key
        decryption if ``passphrase`` is not given.

    passphrase
        Used for decrypting private keys.

    pkey
        An optional private key to use for authentication.

    key_filename
        The filename, or list of filenames, of optional private key(s) and/or
        certificates to try for authentication.

    timeout
        An optional timeout (in seconds) for the TCP connect.

    socket_timeout: ``10``
        The channel socket timeout in seconds.

    buff_size: ``16384``
        The size of the SCP send buffer.

    allow_agent: ``True``
        Set to ``False`` to disable connecting to the SSH agent.

    look_for_keys: ``True``
        Set to ``False`` to disable searching for discoverable private key
        files in ``~/.ssh/``

    banner_timeout
        An optional timeout (in seconds) to wait for the SSH banner to be
        presented.

    auth_timeout
        An optional timeout (in seconds) to wait for an authentication
        response.

    auto_add_policy: ``False``
        Automatically add the host to the ``known_hosts``.

    CLI Example:

    .. code-block:: bash

        salt '*' scp.put /path/to/file /var/tmp/file hostname=server1 auto_add_policy=True

def put(files,
        remote_path=None,
        recursive=False,
        preserve_times=False,
        saltenv='base',
        **kwargs):
    '''
    Transfer files and directories to remote host.

    files
        A single path or a list of paths to be transferred.

    remote_path
        The path on the remote device where to store the files.

    recursive: ``True``
        Transfer files and directories recursively.

    preserve_times: ``False``
        Preserve ``mtime`` and ``atime`` of transferred files and directories.

    hostname
        The hostname of the remote device.

    port: ``22``
        The port of the remote device.

    username
        The username required for SSH authentication on the device.

    password
        Used for password authentication. It is also used for private key
        decryption if ``passphrase`` is not given.

    passphrase
        Used for decrypting private keys.

    pkey
        An optional private key to use for authentication.

    key_filename
        The filename, or list of filenames, of optional private key(s) and/or
        certificates to try for authentication.

    timeout
        An optional timeout (in seconds) for the TCP connect.

    socket_timeout: ``10``
        The channel socket timeout in seconds.

    buff_size: ``16384``
        The size of the SCP send buffer.

    allow_agent: ``True``
        Set to ``False`` to disable connecting to the SSH agent.

    look_for_keys: ``True``
        Set to ``False`` to disable searching for discoverable private key
        files in ``~/.ssh/``

    banner_timeout
        An optional timeout (in seconds) to wait for the SSH banner to be
        presented.

    auth_timeout
        An optional timeout (in seconds) to wait for an authentication
        response.

    auto_add_policy: ``False``
        Automatically add the host to the ``known_hosts``.

    CLI Example:

    .. code-block:: bash

        salt '*' scp.put /path/to/file /var/tmp/file hostname=server1 auto_add_policy=True
    '''
    scp_client = _prepare_connection(**kwargs)
    put_kwargs = {
        'recursive': recursive,
        'preserve_times': preserve_times
    }
    if remote_path:
        put_kwargs['remote_path'] = remote_path
    cached_files = []
    if not isinstance(files, (list, tuple)):
        files = [files]
    for file_ in files:
        cached_file = __salt__['cp.cache_file'](file_, saltenv=saltenv)
        cached_files.append(cached_file)
    return scp_client.put(cached_files, **put_kwargs)