code: func (c *RetryConfig) Merge(o *RetryConfig) *RetryConfig {
  	if c == nil {
  		if o == nil {
  			return nil
  		}
  		return o.Copy()
  	}
  
  	if o == nil {
  		return c.Copy()
  	}
  
  	r := c.Copy()
  
  	if o.Attempts != nil {
  		r.Attempts = o.Attempts
  	}
  
  	if o.Backoff != nil {
  		r.Backoff = o.Backoff
  	}
  
  	if o.MaxBackoff != nil {
  		r.MaxBackoff = o.MaxBackoff
  	}
  
  	if o.Enabled != nil {
  		r.Enabled = o.Enabled
  	}
  
  	return r
  }
docs: // Merge combines all values in this configuration with the values in the other
  // configuration, with values in the other configuration taking precedence.
  // Maps and slices are merged, most other values are overwritten. Complex
  // structs define their own merge functionality.