You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: step7_quote.go
    path of file: ./repos/mal/impls/go/src/step7_quote
    
    the code of the file until where you have to start completion: package main

import (
	"errors"
	"fmt"
	"os"
	"strings"
)

import (
	"core"
	. "env"
	"printer"
	"reader"
	"readline"
	. "types"
)

// read
func READ(str string) (MalType, error) {
	return reader.Read_str(str)
}

// eval
func starts_with(x
    
func rep(str string) (MalType, error) {
	var exp MalType
	var res string
	var e error
	if exp, e = READ(str); e != nil {
		return nil, e
	}
	if exp, e = EVAL(exp, repl_env); e != nil {
		return nil, e
	}
	if res, e = PRINT(exp); e != nil {
		return nil, e
	}
	return res, nil
}