feat: add recipient groups api (#389)

openapi.json

@@ -14,7 +14,7 @@
       "url": "http://www.apache.org/licenses/LICENSE-2.0"
     },
     "version": "2.0.0",
-    "x-box-commit-hash": "f871f1e4d1"
+    "x-box-commit-hash": "d81cf2f982"
   },
   "servers": [
     {
@@ -33098,6 +33098,12 @@
                 "description": "Order of the signer",
                 "minimum": 0,
                 "example": 2
+              },
+              "signer_group_id": {
+                "type": "string",
+                "description": "If set, signers who have the same group ID will be assigned to the same input.\nA signer group is expected to have more than one signer. When a group contains fewer than two signers, \nit will be converted to a single signer and the group will be removed. ",
+                "example": "cd4ff89-8fc1-42cf-8b29-1890dedd26d7",
+                "nullable": true
               }
             }
           }
@@ -37425,6 +37431,12 @@
             "description": "If set, the signer is required to enter the password before they are able\nto sign a document. This field is write only.",
             "example": "SecretPassword123",
             "nullable": true
+          },
+          "signer_group_id": {
+            "type": "string",
+            "description": "If set, signers who have the same group ID will be assigned to the same input.\nA signer group is expected to have more than one signer. When a group contains fewer than two signers, \nit will be converted to a single signer and the group will be removed. ",
+            "example": "cd4ff89-8fc1-42cf-8b29-1890dedd26d7",
+            "nullable": true
           }
         }
       },