Check sanitized extensions

Signed-off-by: Alan Cha <Alan.cha1@ibm.com>

Author: Alan-Cha

packages/openapi-to-graphql/lib/index.js

@@ -155,6 +155,10 @@ export declare enum CaseStyle {
     camelCase = 2,
     ALL_CAPS = 3
 }
+/**
+ * Checks to see if the provided string is GraphQL-safe
+ */
+export declare function isSanitized(str: string): boolean;
 /**
  * First sanitizes given string and then also camelCases it.
  */