def modify_replication_subnet_group(ReplicationSubnetGroupIdentifier=None,
    ReplicationSubnetGroupDescription=None, SubnetIds=None):
    """
    Modifies the settings for the specified replication subnet group.
    See also: AWS API Documentation
    
    
    :example: response = client.modify_replication_subnet_group(
        ReplicationSubnetGroupIdentifier='string',
        ReplicationSubnetGroupDescription='string',
        SubnetIds=[
            'string',
        ]
    )
    
    
    :type ReplicationSubnetGroupIdentifier: string
    :param ReplicationSubnetGroupIdentifier: [REQUIRED]
            The name of the replication instance subnet group.
            

    :type ReplicationSubnetGroupDescription: string
    :param ReplicationSubnetGroupDescription: The description of the replication instance subnet group.

    :type SubnetIds: list
    :param SubnetIds: [REQUIRED]
            A list of subnet IDs.
            (string) --
            

    :rtype: dict
    :return: {
        'ReplicationSubnetGroup': {
            'ReplicationSubnetGroupIdentifier': 'string',
            'ReplicationSubnetGroupDescription': 'string',
            'VpcId': 'string',
            'SubnetGroupStatus': 'string',
            'Subnets': [
                {
                    'SubnetIdentifier': 'string',
                    'SubnetAvailabilityZone': {
                        'Name': 'string'
                    },
                    'SubnetStatus': 'string'
                },
            ]
        }
    }
    
    
    """
    pass
