def list_entities_for_policy(PolicyArn=None, EntityFilter=None, PathPrefix=
    None, Marker=None, MaxItems=None):
    """
    Lists all IAM users, groups, and roles that the specified managed policy is attached to.
    You can use the optional EntityFilter parameter to limit the results to a particular type of entity (users, groups, or roles). For example, to list only the roles that are attached to the specified policy, set EntityFilter to Role .
    You can paginate the results using the MaxItems and Marker parameters.
    See also: AWS API Documentation
    
    
    :example: response = client.list_entities_for_policy(
        PolicyArn='string',
        EntityFilter='User'|'Role'|'Group'|'LocalManagedPolicy'|'AWSManagedPolicy',
        PathPrefix='string',
        Marker='string',
        MaxItems=123
    )
    
    
    :type PolicyArn: string
    :param PolicyArn: [REQUIRED]
            The Amazon Resource Name (ARN) of the IAM policy for which you want the versions.
            For more information about ARNs, see Amazon Resource Names (ARNs) and AWS Service Namespaces in the AWS General Reference .
            

    :type EntityFilter: string
    :param EntityFilter: The entity type to use for filtering the results.
            For example, when EntityFilter is Role , only the roles that are attached to the specified policy are returned. This parameter is optional. If it is not included, all attached entities (users, groups, and roles) are returned. The argument for this parameter must be one of the valid values listed below.
            

    :type PathPrefix: string
    :param PathPrefix: The path prefix for filtering the results. This parameter is optional. If it is not included, it defaults to a slash (/), listing all entities.
            This paramater allows (per its regex pattern ) a string of characters consisting of either a forward slash (/) by itself or a string that must begin and end with forward slashes, containing any ASCII character from the ! (u0021) thru the DEL character (u007F), including most punctuation characters, digits, and upper and lowercased letters.
            

    :type Marker: string
    :param Marker: Use this parameter only when paginating results and only after you receive a response indicating that the results are truncated. Set it to the value of the Marker element in the response that you received to indicate where the next call should start.

    :type MaxItems: integer
    :param MaxItems: (Optional) Use this only when paginating results to indicate the maximum number of items you want in the response. If additional items exist beyond the maximum you specify, the IsTruncated response element is true .
            If you do not include this parameter, it defaults to 100. Note that IAM might return fewer results, even when there are more results available. In that case, the IsTruncated response element returns true and Marker contains a value to include in the subsequent call that tells the service where to continue from.
            

    :rtype: dict
    :return: {
        'PolicyGroups': [
            {
                'GroupName': 'string',
                'GroupId': 'string'
            },
        ],
        'PolicyUsers': [
            {
                'UserName': 'string',
                'UserId': 'string'
            },
        ],
        'PolicyRoles': [
            {
                'RoleName': 'string',
                'RoleId': 'string'
            },
        ],
        'IsTruncated': True|False,
        'Marker': 'string'
    }
    
    
    """
    pass
