| 1234567891011121314151617181920212223242526272829303132333435363738 | package moimport (	"context"	"time"	"go.mongodb.org/mongo-driver/v2/mongo"	"go.mongodb.org/mongo-driver/v2/mongo/options"	"go.mongodb.org/mongo-driver/v2/mongo/readpref")const (	DefaultTimout = 10 * time.Second)func Dial(address string) (*Client, error) {	return DialOptions(options.Client().ApplyURI(address))}func DialOptions(opts *options.ClientOptions) (*Client, error) {	if opts.Timeout == nil {		opts.SetConnectTimeout(DefaultTimout)	}	if opts.ConnectTimeout == nil {		opts.SetConnectTimeout(DefaultTimout / 2)	}	if opts.AppName == nil {		opts.SetAppName("golib/v4")	}	return mongo.Connect(opts)}func Ping(c *Client) error {	ctx, cancel := context.WithTimeout(context.Background(), DefaultTimout)	defer cancel()	_ = c.Ping(ctx, readpref.Primary())	return nil}
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