class_docstr: what3words
  ==========
  what3words is a global grid of 57 trillion 3mx3m squares.
  Each square has a 3 word address that can be communicated quickly,
  easily and with no ambiguity.
  
  Addressing the world
  
  Everyone and everywhere now has an address
  
  Params
  ------
  :param location: Your search location you want geocoded.
  :param key: W3W API key.
  :param method: Chose a method (geocode, method)
  
  References
  ----------
  API Reference: http://developer.what3words.com/
  Get W3W key: http://developer.what3words.com/api-register/
code: def _build_params(self, location, provider_key, **kwargs):
      return {
          "coords": location,
          "key": provider_key,
      }
  
imports: from __future__ import absolute_import
  from geocoder.w3w import W3WResult, W3WQuery
label_desc: Use image node_id 1 for calling the W3WReverse obj's underlying member method code with example usage: obj._build_params(location, provider_key) and returns: dict