func NewSafeParamStorer(safeParams map[string]interface{}) ParamStorer {
	return NewSafeAndUnsafeParamStorer(safeParams, nil)
}
NewSafeParamStorer returns a new ParamStorer that stores the provided parameters as SafeParams.
package wparams
type ParamStorer interface {
	SafeParams() map[string]interface{}
	UnsafeParams() map[string]interface{}
}
func NewParamStorer(paramStorers ...ParamStorer) ParamStorer {
	collector := &mapParamStorer{}
	for _, storer := range paramStorers {
		collector.copyFrom(storer)
	}
	return collector
}