POST /v2/transactions — private-market-fund-drawdown-transaction

A capital call (or fee/interest payment) into a private-market fund.
`effectOnUnfundedCommitment` adjusts the remaining unfunded commitment.

Request:
{
  "data": {
    "type": "private-market-fund-drawdown-transaction",
    "attributes": {
      "category":                   "string (required) — one of: capital-call, management-fee, interest-paid, other-fee",
      "amount":                     "number (required) — called amount, in fund currency. Positive (negative allowed for corrections)",
      "effectOnUnfundedCommitment": "number (required) — signed change to unfunded commitment. Negative for a typical capital call, 0 for no change, positive for corrections",
      "affectsEstimatedNav":        "boolean (required)",
      "affectsMultiples":           "boolean (required)",
      "affectsIrr":                 "boolean (required)",
      "affectsCostBase":            "boolean (required)",
      "accountAmount":              "number (required) — amount deposited/withdrawn, in account currency",
      "comment":                    "string (optional)",
      "tradeDate":                  "string, ISO 8601 (required)",
      "valueDate":                  "string, ISO 8601 (required)"
    },
    "relationships": {
      "account":    { "data": { "type": "account", "id": "string (required)" } },
      "instrument": { "data": { "type": "instrument", "id": "string (required) — the fund instrument" } }
    }
  }
}

Response (201 Created):
{
  "data": {
    "id": "string",
    "type": "private-market-fund-drawdown-transaction",
    "attributes": { /* same as request */ },
    "relationships": { /* same as request */ }
  }
}