code: func NewNOutOfPolicy(n int32, signedBy ...*common.SignaturePolicy) *common.SignaturePolicy {
  	return &common.SignaturePolicy{
  		Type: &common.SignaturePolicy_NOutOf_{
  			NOutOf: &common.SignaturePolicy_NOutOf{
  				N:     n,
  				Rules: signedBy,
  			}}}
  }
docs: // NewNOutOfPolicy creates an NOutOf signature policy