func OverrideErrorBody(message string) errors.ErrorOption {
	return errors.SetData(errorBody, message)
}
OverrideErrorBody returns an ErrorOption (for use in ErrorClass creation or
error instantiation) that controls the error body seen by GetErrorBody.
package errhttp
import (
	"fmt"
	"github.com/spacemonkeygo/errors"
)
var (
	statusCode = errors.GenSym()
	errorBody  = errors.GenSym()
)
func SetStatusCode(code int) errors.ErrorOption {
	return errors.SetData(statusCode, code)
}