code: func (c *Client) UpdateDynamicSnippet(i *UpdateDynamicSnippetInput) (*DynamicSnippet, error) {
  	if i.Service == "" {
  		return nil, ErrMissingService
  	}
  
  	if i.ID == "" {
  		return nil, ErrMissingID
  	}
  
  	path := fmt.Sprintf("/service/%s/snippet/%s", i.Service, i.ID)
  	resp, err := c.PutForm(path, i, nil)
  	if err != nil {
  		return nil, err
  	}
  
  	var updateSnippet *DynamicSnippet
  	if err := decodeJSON(&updateSnippet, resp.Body); err != nil {
  		return nil, err
  	}
  	return updateSnippet, err
  }
docs: // UpdateDynamicSnippet replaces the content of a Dynamic Snippet