code: func Read(c *messagebird.Client, phoneNumber string, params *Params) (*Lookup, error) {
  	urlParams := paramsForLookup(params)
  	path := lookupPath + "/" + phoneNumber + "?" + urlParams.Encode()
  
  	lookup := &Lookup{}
  	if err := c.Request(lookup, http.MethodGet, path, nil); err != nil {
  		return nil, err
  	}
  
  	return lookup, nil
  }
docs: // Read performs a new lookup for the specified number.