def list_qualification_types(Query=None, MustBeRequestable=None,
    MustBeOwnedByCaller=None, NextToken=None, MaxResults=None):
    """
    The ListQualificationRequests operation retrieves requests for Qualifications of a particular Qualification type. The owner of the Qualification type calls this operation to poll for pending requests, and accepts them using the AcceptQualification operation.
    See also: AWS API Documentation
    
    
    :example: response = client.list_qualification_types(
        Query='string',
        MustBeRequestable=True|False,
        MustBeOwnedByCaller=True|False,
        NextToken='string',
        MaxResults=123
    )
    
    
    :type Query: string
    :param Query: A text query against all of the searchable attributes of Qualification types.

    :type MustBeRequestable: boolean
    :param MustBeRequestable: [REQUIRED]
            Specifies that only Qualification types that a user can request through the Amazon Mechanical Turk web site, such as by taking a Qualification test, are returned as results of the search. Some Qualification types, such as those assigned automatically by the system, cannot be requested directly by users. If false, all Qualification types, including those managed by the system, are considered. Valid values are True | False.
            

    :type MustBeOwnedByCaller: boolean
    :param MustBeOwnedByCaller: Specifies that only Qualification types that the Requester created are returned. If false, the operation returns all Qualification types.

    :type NextToken: string
    :param NextToken: If the previous response was incomplete (because there is more data to retrieve), Amazon Mechanical Turk returns a pagination token in the response. You can use this pagination token to retrieve the next set of results.

    :type MaxResults: integer
    :param MaxResults: The maximum number of results to return in a single call.

    :rtype: dict
    :return: {
        'NumResults': 123,
        'NextToken': 'string',
        'QualificationTypes': [
            {
                'QualificationTypeId': 'string',
                'CreationTime': datetime(2015, 1, 1),
                'Name': 'string',
                'Description': 'string',
                'Keywords': 'string',
                'QualificationTypeStatus': 'Active'|'Inactive',
                'Test': 'string',
                'TestDurationInSeconds': 123,
                'AnswerKey': 'string',
                'RetryDelayInSeconds': 123,
                'IsRequestable': True|False,
                'AutoGranted': True|False,
                'AutoGrantedValue': 123
            },
        ]
    }
    
    
    """
    pass
