Header object that precedes all GSP files received/sent from/to Google and Payment integrators.
| JSON representation | 
|---|
| {
  "requestId": string,
  "generationTimestamp": {
    object ( | 
| Fields | |
|---|---|
| requestId | 
 REQUIRED: Unique identifier of this request. This identifier is unique within a PIAID. This is a string that has a max length of 100 characters, and contains only the characters "a-z", "A-Z", "0-9", ":", "-", and "_". | 
| generationTimestamp | 
 REQUIRED: Timestamp of the file creation. | 
| type | 
 REQUIRED: Denotes which file spec the content contains. | 
| paymentIntegratorAccountId | 
 REQUIRED: Identifies a unique account with contractual constraints. |