code: func MergeConfig(a, b *Config) *Config {
  	// Return quickly if either side was nil
  	if a == nil {
  		return b
  	}
  	if b == nil {
  		return a
  	}
  
  	var result Config = *a
  
  	if b.Delim != "" {
  		result.Delim = b.Delim
  	}
  	if b.Glue != "" {
  		result.Glue = b.Glue
  	}
  	if b.Prefix != "" {
  		result.Prefix = b.Prefix
  	}
  	if b.Empty != "" {
  		result.Empty = b.Empty
  	}
  	if b.NoTrim {
  		result.NoTrim = true
  	}
  
  	return &result
  }
docs: // MergeConfig merges two config objects together and returns the resulting
  // configuration. Values from the right take precedence over the left side.