================== Multiplication expression ================== 45 * 3 --- (source_file (multiplicative_expression (integer_literal) (integer_literal))) ================== Function calls ================== print("Hello World!") sum(1, 2) --- (source_file (call_expression (simple_identifier) (call_suffix (value_arguments (value_argument (line_string_literal))))) (call_expression (simple_identifier) (call_suffix (value_arguments (value_argument (integer_literal)) (value_argument (integer_literal))))))