hdm-am 0.1.0

Client for the Armenian fiscal cash register (HDM) protocol per the State Revenue Committee spec
Documentation 
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{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "ReturnReceiptResponse",
  "description": "Op 10 response: full receipt details + return-specific timestamps.",
  "type": "object",
  "properties": {
    "rseq": {
      "description": "Receipt sequence number.",
      "type": "integer",
      "format": "int64"
    },
    "crn": {
      "description": "HDM registration number.",
      "type": "string",
      "default": ""
    },
    "sn": {
      "description": "HDM hardware serial number.",
      "type": "string",
      "default": ""
    },
    "tin": {
      "description": "Taxpayer TIN.",
      "type": "string",
      "default": ""
    },
    "taxpayer": {
      "description": "Taxpayer name.",
      "type": "string",
      "default": ""
    },
    "address": {
      "description": "Taxpayer address.",
      "type": "string",
      "default": ""
    },
    "time": {
      "description": "Original receipt timestamp (ms since epoch, Greenwich).",
      "type": "integer",
      "format": "int64",
      "default": 0
    },
    "rtime": {
      "description": "Return-receipt timestamp (ms since epoch, Greenwich).",
      "type": "integer",
      "format": "int64",
      "default": 0
    },
    "fiscal": {
      "description": "Fiscal number.",
      "type": "string",
      "default": ""
    },
    "lottery": {
      "description": "Lottery number.",
      "type": "string",
      "default": ""
    },
    "prize": {
      "description": "Prize indicator (currently always 0).",
      "type": "integer",
      "format": "uint32",
      "minimum": 0,
      "default": 0
    },
    "total": {
      "description": "Total amount.",
      "type": "number",
      "format": "double",
      "default": 0.0
    },
    "change": {
      "description": "Change.",
      "type": "number",
      "format": "double",
      "default": 0.0
    },
    "emarksCount": {
      "description": "Number of registered marks.",
      "type": [
        "string",
        "null"
      ],
      "default": null
    },
    "verificationNumber": {
      "description": "Short verification number printed on the receipt.",
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "rseq"
  ]
}