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: content.go
    path of file: ./repos/fac/editor
    
    the code of the file until where you have to start completion: package editor

import (
	"bufio"
	"io"
	"os"
	"strings"
)

// Content represents the lines read from a io.Reader
// `c` holds the ac
    
func contentFromFile(filename string) (Content, error) {
	file, err := os.Open(filename)
	if err != nil {
		return Content{}, err
	}
	defer file.Close()

	return contentFromReader(file)
}