POST https://direct.i-dgtl/ru/api/v1/sender-names
Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
Content-Type: multipart/form-data; boundary=--part
Content-Disposition: form-data; name="file1"; filename="document1.pdf"
Content-Disposition: form-data; name="file2"; filename="document2.png"
Content-Disposition: form-data; name="body"
Content-Type: application/json
"dateFrom": "2020-07-07T21:00:00Z",
"counteragentName": "Контрагент, ООО",
"counteragentInn": "123451729124"