How to use the azure-mgmt-datafactory.azure.mgmt.datafactory.models.activity.Activity function in azure-mgmt-datafactory

def __init__(self, **kwargs):
        super(Activity, self).__init__(**kwargs)
        self.additional_properties = kwargs.get('additional_properties', None)
        self.name = kwargs.get('name', None)
        self.description = kwargs.get('description', None)
        self.depends_on = kwargs.get('depends_on', None)
        self.user_properties = kwargs.get('user_properties', None)
        self.type = None

# coding=utf-8
# --------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
#
# Code generated by Microsoft (R) AutoRest Code Generator.
# Changes may cause incorrect behavior and will be lost if the code is
# regenerated.
# --------------------------------------------------------------------------

from .activity import Activity


class ExecutionActivity(Activity):
    """Base class for all execution activities.

    You probably want to use the sub-classes and not this class directly. Known
    sub-classes are: AzureFunctionActivity, DatabricksSparkPythonActivity,
    DatabricksSparkJarActivity, DatabricksNotebookActivity,
    DataLakeAnalyticsUSQLActivity, AzureMLUpdateResourceActivity,
    AzureMLBatchExecutionActivity, GetMetadataActivity, WebActivity,
    LookupActivity, DeleteActivity, SqlServerStoredProcedureActivity,
    CustomActivity, ExecuteSSISPackageActivity, HDInsightSparkActivity,
    HDInsightStreamingActivity, HDInsightMapReduceActivity,
    HDInsightPigActivity, HDInsightHiveActivity, CopyActivity

    All required parameters must be populated in order to send to Azure.

    :param additional_properties: Unmatched properties from the message are
     deserialized this collection

# coding=utf-8
# --------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
#
# Code generated by Microsoft (R) AutoRest Code Generator.
# Changes may cause incorrect behavior and will be lost if the code is
# regenerated.
# --------------------------------------------------------------------------

from .activity import Activity


class ControlActivity(Activity):
    """Base class for all control activities like IfCondition, ForEach , Until.

    You probably want to use the sub-classes and not this class directly. Known
    sub-classes are: AppendVariableActivity, SetVariableActivity,
    FilterActivity, UntilActivity, WaitActivity, ForEachActivity,
    IfConditionActivity, ExecutePipelineActivity

    All required parameters must be populated in order to send to Azure.

    :param additional_properties: Unmatched properties from the message are
     deserialized this collection
    :type additional_properties: dict[str, object]
    :param name: Required. Activity name.
    :type name: str
    :param description: Activity description.
    :type description: str