| 1234567891011121314151617181920212223242526272829303132333435 | package moimport (	"context"	"go.mongodb.org/mongo-driver/mongo"	"go.mongodb.org/mongo-driver/mongo/options"	"go.mongodb.org/mongo-driver/mongo/readpref")func NewClient(uri string) (*Client, error) {	client, err := mongo.NewClient(options.Client().ApplyURI(uri))	if err != nil {		return nil, err	}	ctx, cancel := context.WithTimeout(context.Background(), DefaultTimout)	defer cancel()	if err = client.Connect(ctx); err != nil {		return nil, err	}	return client, client.Ping(ctx, readpref.Primary())}func NewClientWithAuth(uri string, auth Credential) (*Client, error) {	client, err := mongo.NewClient(options.Client().ApplyURI(uri).SetAuth(auth))	if err != nil {		return nil, err	}	ctx, cancel := context.WithTimeout(context.Background(), DefaultTimout)	defer cancel()	if err = client.Connect(ctx); err != nil {		return nil, err	}	return client, client.Ping(ctx, readpref.Primary())}
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