src/vs/workbench/contrib/tasks/browser/terminalTaskSystem.ts/TerminalTaskSystem/_acquireInput
class TerminalTaskSystem:	private async _acquireInput(taskSystemInfo: ITaskSystemInfo | undefined, workspaceFolder: IWorkspaceFolder | undefined, task: CustomTask | ContributedTask, variables: Set<string>, alreadyResolved: Map<string, string>): Promise<IResolvedVariables | undefined> {
		const resolved = await this._resolveVariablesFromSet(taskSystemInfo, workspaceFolder, task, variables, alreadyResolved);
		this._fireTaskEvent(TaskEvent.create(TaskEventKind.AcquiredInput, task));
		return resolved;
	}