code: func (as *Step) SetProperty(name, value string) bool {
  	for _, p := range as.Property {
  		if p.Name == name {
  			if p.Value == value {
  				return false
  			}
  			p.Value = value
  			return true
  		}
  	}
  
  	as.Property = append(as.Property, &milo.Step_Property{
  		Name:  name,
  		Value: value,
  	})
  	return true
  }
docs: // SetProperty sets a key/value property for this Step.