def json_response_schema(expected_object_schema):
    """
    Make a schema for a "standard" server response.
    Standard server responses have 'status': True
    and possibly 'indexing': True set.
    """
    schema = {'type': 'object', 'properties': {'status': {'type': 'boolean'
        }, 'indexing': {'type': 'boolean'}, 'lastblock': {'anyOf': [{'type':
        'integer', 'minimum': 0}, {'type': 'null'}]}}, 'required': [
        'status', 'indexing', 'lastblock']}
    schema['properties'].update(expected_object_schema['properties'])
    schema['required'] = list(set(schema['required'] +
        expected_object_schema['required']))
    return schema
