Constant DELETE_ISSUES 

pub const DELETE_ISSUES: &str = "mutation($delete0:DeleteIssueInput!,$send0:Boolean!,$delete1:DeleteIssueInput!,$send1:Boolean!,$delete2:DeleteIssueInput!,$send2:Boolean!,$delete3:DeleteIssueInput!,$send3:Boolean!,$delete4:DeleteIssueInput!,$send4:Boolean!,){ delete0:deleteIssue(input:$delete0) @include(if:$send0){repository{id}} delete1:deleteIssue(input:$delete1) @include(if:$send1){repository{id}} delete2:deleteIssue(input:$delete2) @include(if:$send2){repository{id}} delete3:deleteIssue(input:$delete3) @include(if:$send3){repository{id}} delete4:deleteIssue(input:$delete4) @include(if:$send4){repository{id}}}";

Deletes up to DELETE_BATCH issues in one request, each as DELETE_ISSUE deletes one: what a write that created several issues and was refused part way sends to take them back.