# File lib/oauth2/client.rb, line 134
    def get_token(params, access_token_opts = {}, access_token_class = AccessToken) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
      params = Authenticator.new(id, secret, options[:auth_scheme]).apply(params)
      opts = {:raise_errors => options[:raise_errors], :parse => params.delete(:parse)}
      headers = params.delete(:headers) || {}
      if options[:token_method] == :post
        opts[:body] = params
        opts[:headers] = {'Content-Type' => 'application/x-www-form-urlencoded'}
      else
        opts[:params] = params
        opts[:headers] = {}
      end
      opts[:headers].merge!(headers)
      response = request(options[:token_method], token_url, opts)
      if options[:raise_errors] && !(response.parsed.is_a?(Hash) && response.parsed['access_token'])
        error = Error.new(response)
        raise(error)
      end
      access_token_class.from_hash(self, response.parsed.merge(access_token_opts))
    end