public Builder setUrl(java.lang.String value) {
                copyOnWrite();
                instance.setUrl(value);
                return this;
            }
<code>string url = 1;</code>

@param value The url to set.
@return This builder for chaining.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/model/file/ImageFile.java