Sequelize Add documented props to SyncOptions (#16976)

* Added alter, hooks, and searchPath to syncOptions interface with compiler test and documentation comments (straight from sequelize v4 docs)

* Fix implicit any return type error

types/sequelize/index.d.ts

@@ -3165,7 +3165,7 @@ declare namespace sequelize {
          * Load further nested related models
          */
         include?: Array<Model<any, any> | IncludeOptions>;
-        
+
         /**
          * If true, only non-deleted records will be returned. If false, both deleted and non-deleted records will
          * be returned. Only applies if `options.paranoid` is true for the model.
@@ -3260,7 +3260,7 @@ declare namespace sequelize {
          * Apply DISTINCT(col) for FindAndCount(all)
          */
         distinct?: boolean;
-                     
+
         /**
          * Prevents a subquery on the main table when using include
          */
@@ -5052,6 +5052,22 @@ declare namespace sequelize {
          */
         schema?: string;
 
+        /**
+         * Alters tables to fit models. Not recommended for production use. Deletes data in columns
+         * that were removed or had their type changed in the model.
+         */
+        alter?: boolean;
+
+        /**
+         * If hooks is true then beforeSync, afterSync, beforBulkSync, afterBulkSync hooks will be called
+         */
+        hooks?: boolean;
+
+        /**
+         * An optional parameter to specify the schema search_path (Postgres only)
+         */
+        searchPath?: string;
+
     }
 
     interface SetOptions { }

types/sequelize/sequelize-tests.ts

@@ -1670,3 +1670,14 @@ s.transaction((): Q.Promise<void> => {
         resolve(null);
     });
 });
+
+// sync options types
+s.sync({
+    alter: true,
+    force: true,
+    hooks: false,
+    searchPath: 'some/path/',
+    schema: 'schema',
+    logging: () => {},
+    match: new RegExp('\d{4,}')
+});