Create dialog node.

        Create a new dialog node.
        This operation is limited to 500 requests per 30 minutes. For more information,
        see **Rate limiting**.

        :param str workspace_id: Unique identifier of the workspace.
        :param str dialog_node: The dialog node ID. This string must conform to the
        following restrictions:
        - It can contain only Unicode alphanumeric, space, underscore, hyphen, and dot
        characters.
        - It must be no longer than 1024 characters.
        :param str description: The description of the dialog node. This string cannot
        contain carriage return, newline, or tab characters, and it must be no longer than
        128 characters.
        :param str conditions: The condition that will trigger the dialog node. This
        string cannot contain carriage return, newline, or tab characters, and it must be
        no longer than 2048 characters.
        :param str parent: The ID of the parent dialog node. This property is omitted if
        the dialog node has no parent.
        :param str previous_sibling: The ID of the previous sibling dialog node. This
        property is omitted if the dialog node has no previous sibling.
        :param DialogNodeOutput output: The output of the dialog node. For more
        information about how to specify dialog node output, see the
        [documentation](https://cloud.ibm.com/docs/services/assistant/dialog-overview.html#dialog-overview-responses).
        :param dict context: The context for the dialog node.
        :param dict metadata: The metadata for the dialog node.
        :param DialogNodeNextStep next_step: The next step to execute following this
        dialog node.
        :param str title: The alias used to identify the dialog node. This string must
        conform to the following restrictions:
        - It can contain only Unicode alphanumeric, space, underscore, hyphen, and dot
        characters.
        - It must be no longer than 64 characters.
        :param str node_type: How the dialog node is processed.
        :param str event_name: How an `event_handler` node is processed.
        :param str variable: The location in the dialog context where output is stored.
        :param list[DialogNodeAction] actions: An array of objects describing any actions
        to be invoked by the dialog node.
        :param str digress_in: Whether this top-level dialog node can be digressed into.
        :param str digress_out: Whether this dialog node can be returned to after a
        digression.
        :param str digress_out_slots: Whether the user can digress to top-level nodes
        while filling out slots.
        :param str user_label: A label that can be displayed externally to describe the
        purpose of the node to users. This string must be no longer than 512 characters.
        :param dict headers: A `dict` containing the request headers
        :return: A `DetailedResponse` containing the result, headers and HTTP status code.
        :rtype: DetailedResponse

def create_dialog_node(self,
                           workspace_id,
                           dialog_node,
                           description=None,
                           conditions=None,
                           parent=None,
                           previous_sibling=None,
                           output=None,
                           context=None,
                           metadata=None,
                           next_step=None,
                           title=None,
                           node_type=None,
                           event_name=None,
                           variable=None,
                           actions=None,
                           digress_in=None,
                           digress_out=None,
                           digress_out_slots=None,
                           user_label=None,
                           **kwargs):
        """
        Create dialog node.

        Create a new dialog node.
        This operation is limited to 500 requests per 30 minutes. For more information,
        see **Rate limiting**.

        :param str workspace_id: Unique identifier of the workspace.
        :param str dialog_node: The dialog node ID. This string must conform to the
        following restrictions:
        - It can contain only Unicode alphanumeric, space, underscore, hyphen, and dot
        characters.
        - It must be no longer than 1024 characters.
        :param str description: The description of the dialog node. This string cannot
        contain carriage return, newline, or tab characters, and it must be no longer than
        128 characters.
        :param str conditions: The condition that will trigger the dialog node. This
        string cannot contain carriage return, newline, or tab characters, and it must be
        no longer than 2048 characters.
        :param str parent: The ID of the parent dialog node. This property is omitted if
        the dialog node has no parent.
        :param str previous_sibling: The ID of the previous sibling dialog node. This
        property is omitted if the dialog node has no previous sibling.
        :param DialogNodeOutput output: The output of the dialog node. For more
        information about how to specify dialog node output, see the
        [documentation](https://cloud.ibm.com/docs/services/assistant/dialog-overview.html#dialog-overview-responses).
        :param dict context: The context for the dialog node.
        :param dict metadata: The metadata for the dialog node.
        :param DialogNodeNextStep next_step: The next step to execute following this
        dialog node.
        :param str title: The alias used to identify the dialog node. This string must
        conform to the following restrictions:
        - It can contain only Unicode alphanumeric, space, underscore, hyphen, and dot
        characters.
        - It must be no longer than 64 characters.
        :param str node_type: How the dialog node is processed.
        :param str event_name: How an `event_handler` node is processed.
        :param str variable: The location in the dialog context where output is stored.
        :param list[DialogNodeAction] actions: An array of objects describing any actions
        to be invoked by the dialog node.
        :param str digress_in: Whether this top-level dialog node can be digressed into.
        :param str digress_out: Whether this dialog node can be returned to after a
        digression.
        :param str digress_out_slots: Whether the user can digress to top-level nodes
        while filling out slots.
        :param str user_label: A label that can be displayed externally to describe the
        purpose of the node to users. This string must be no longer than 512 characters.
        :param dict headers: A `dict` containing the request headers
        :return: A `DetailedResponse` containing the result, headers and HTTP status code.
        :rtype: DetailedResponse
        """

        if workspace_id is None:
            raise ValueError('workspace_id must be provided')
        if dialog_node is None:
            raise ValueError('dialog_node must be provided')
        if output is not None:
            output = self._convert_model(output, DialogNodeOutput)
        if next_step is not None:
            next_step = self._convert_model(next_step, DialogNodeNextStep)
        if actions is not None:
            actions = [
                self._convert_model(x, DialogNodeAction) for x in actions
            ]

        headers = {}
        if 'headers' in kwargs:
            headers.update(kwargs.get('headers'))
        sdk_headers = get_sdk_headers('conversation', 'V1',
                                      'create_dialog_node')
        headers.update(sdk_headers)

        params = {'version': self.version}

        data = {
            'dialog_node': dialog_node,
            'description': description,
            'conditions': conditions,
            'parent': parent,
            'previous_sibling': previous_sibling,
            'output': output,
            'context': context,
            'metadata': metadata,
            'next_step': next_step,
            'title': title,
            'type': node_type,
            'event_name': event_name,
            'variable': variable,
            'actions': actions,
            'digress_in': digress_in,
            'digress_out': digress_out,
            'digress_out_slots': digress_out_slots,
            'user_label': user_label
        }

        url = '/v1/workspaces/{0}/dialog_nodes'.format(
            *self._encode_path_vars(workspace_id))
        response = self.request(
            method='POST',
            url=url,
            headers=headers,
            params=params,
            json=data,
            accept_json=True)
        return response