def add_tags(pipelineId=None, tags=None):
    """
    Adds or modifies tags for the specified pipeline.
    See also: AWS API Documentation
    
    
    :example: response = client.add_tags(
        pipelineId='string',
        tags=[
            {
                'key': 'string',
                'value': 'string'
            },
        ]
    )
    
    
    :type pipelineId: string
    :param pipelineId: [REQUIRED]
            The ID of the pipeline.
            

    :type tags: list
    :param tags: [REQUIRED]
            The tags to add, as key/value pairs.
            (dict) --Tags are key/value pairs defined by a user and associated with a pipeline to control access. AWS Data Pipeline allows you to associate ten tags per pipeline. For more information, see Controlling User Access to Pipelines in the AWS Data Pipeline Developer Guide .
            key (string) -- [REQUIRED]The key name of a tag defined by a user. For more information, see Controlling User Access to Pipelines in the AWS Data Pipeline Developer Guide .
            value (string) -- [REQUIRED]The optional value portion of a tag defined by a user. For more information, see Controlling User Access to Pipelines in the AWS Data Pipeline Developer Guide .
            
            

    :rtype: dict
    :return: {}
    
    
    """
    pass
