public List<StreamField> parseFields(String method, String statement) {
        Preconditions.expectTrue(STATEMENT_TYPE_JSON.equals(method) || STATEMENT_TYPE_SQL.equals(method),
                "Unsupported parse field method: '" + method + "'");
        Preconditions.expectNotBlank(statement, "The statement must not empty");
        ParseFieldRequest request = ParseFieldRequest.builder().method(method).statement(statement).build();
        return parseFields(request);
    }
Converts a json string to a streamFields

@param method the method for the field information: json or sql
@param statement the statement for the field information
@return list of stream field
inlong-manager/manager-client/src/main/java/org/apache/inlong/manager/client/api/inner/client/InlongStreamClient.java