beg'>&quot;</span><span class='tstring_content'>`</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_k'>k</span><span class='embexpr_end'>}</span><span class='tstring_content'>` is not a valid attribute in `Coinbase::Client::FetchHistoricalStakingBalances200Response`. Please check the name to make sure it&#39;s valid. List of attributes: </span><span class='tstring_end'>&quot;</span></span> <span class='op'>+</span> <span class='kw'>self</span><span class='period'>.</span><span class