ref="../boost/property_tree/json_parser/write__1_3_33_10_5_1_1_1_3.html" title="Function template write_json"><span class="identifier">write_json</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">Ptree</span><span class="special">::</span><span class="identifier">key_type</span><span class="special">::</span><spa