This method will return all of the investments that are found within an instance, specified by the provided instance ID.
If the instance exists but contains no investments, an empty array is returned with HTTP 200.

Each investment in the response includes:

• id — unique integer identifier of the investment.
• name — display name of the investment.
• uploadId — transaction ID of the associated K-1 upload, or null if not uploaded.
• instanceId — identifier of the instance this investment belongs to.
• createdDate — ISO 8601 timestamp of when the investment was created.
• status — current workflow status of the investment, returned as the name of the corresponding !:StatusEnum value.
• comment — optional comment text associated with the investment, or null if none exists.
• uploadedBy — the email address of the user who uploaded the investment, or null if the investment was created manually (e.g. via the Add Investment endpoint or Excel import without a resolved user session).
• tags — list of tag names assigned to the investment, sorted alphabetically. Empty array if the investment has no tags.