client/version.go
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 package client // import "github.com/docker/docker/client"
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 import (
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 	"context"
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 	"encoding/json"
 
 	"github.com/docker/docker/api/types"
 )
 
 // ServerVersion returns information of the docker client and server host.
 func (cli *Client) ServerVersion(ctx context.Context) (types.Version, error) {
 	resp, err := cli.get(ctx, "/version", nil, nil)
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 	defer ensureReaderClosed(resp)
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 	if err != nil {
 		return types.Version{}, err
 	}
 
 	var server types.Version
 	err = json.NewDecoder(resp.body).Decode(&server)
 	return server, err
 }