refactor: improve types and imports

src/types/Request.ts

@@ -0,0 +1,10 @@
+import { MacroVars } from '@sasjs/utils'
+
+export interface ExecutionQuery {
+  _program: string
+  macroVars?: MacroVars
+  _debug?: boolean
+}
+
+export const isRequestQuery = (arg: any): arg is ExecutionQuery =>
+  arg && !Array.isArray(arg) && typeof arg._program === 'string'