fix(dynamoose.ts.d): Add/fix TypeScript types

Model.update is missing some options in the options type. model.put and its pseudonym model.save
have the wrong type altogether for the options parameter. I've simply fixed the types in
dynamoose.ts.d to match what the functions are expecting.

dynamoose.d.ts

@@ -144,16 +144,14 @@ declare module "dynamoose" {
   */
   export class Model<ModelData> {
     constructor(obj: ModelData);
-    put(options: PutOptions, callback: (err: Error) => void): Promise<Model<ModelData>>;
-    save(options: SaveOptions, callback: (err: Error) => void): Promise<Model<ModelData>>;
 
     delete(callback?: (err: Error) => void): Promise<undefined>;
 
+    put(options: PutOptions, callback?: (err: Error) => void): Promise<Model<ModelData>>;
     put(callback: (err: Error) => void): Promise<Model<ModelData>>;
-    put(options: ModelData, callback?: (err: Error) => void): Promise<Model<ModelData>>;
 
+    save(options: SaveOptions, callback?: (err: Error) => void): Promise<Model<ModelData>>;
     save(callback?: (err: Error) => void): Promise<Model<ModelData>>;
-    save(options: ModelData, callback?: (err: Error) => void): Promise<Model<ModelData>>;
 
     originalItem(): object;
 
@@ -211,9 +209,9 @@ declare module "dynamoose" {
     queryOne(query: QueryFilter, callback?: (err: Error, results: ModelSchema<DataSchema>) => void): QueryInterface<ModelSchema<DataSchema>, ModelSchema<DataSchema>>;
     scan(filter?: ScanFilter, callback?: (err: Error, results: ModelSchema<DataSchema>[]) => void): ScanInterface<ModelSchema<DataSchema>>;
 
-    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options: UpdateOption, callback: (err: Error, items: ModelSchema<DataSchema>[]) => void): void;
+    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options: UpdateOptions, callback: (err: Error, items: ModelSchema<DataSchema>[]) => void): void;
     update(key: KeySchema, update: UpdateUpdate<DataSchema>, callback: (err: Error, items: ModelSchema<DataSchema>[]) => void): void;
-    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options?: UpdateOption): Promise<ModelSchema<DataSchema>>;
+    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options?: UpdateOptions): Promise<ModelSchema<DataSchema>>;
 
     transaction: ModelTransactionConstructor<DataSchema, KeySchema>
   }
@@ -234,19 +232,40 @@ declare module "dynamoose" {
     | { $DELETE: Partial<DataSchema> }
   );
 
-  export interface UpdateOption {
+  export interface UpdateOptions {
     /**
     * If true, the attribute can be updated to an empty array. If false, empty arrays will remove the attribute. Defaults to false.
     */
-    allowEmptyArray: boolean;
+    allowEmptyArray?: boolean;
     /**
     * If true, required attributes will be filled with their default values on update (regardless of you specifying them for the update). Defaults to false.
     */
-    createRequired: boolean;
+    createRequired?: boolean;
     /**
     * If true, the timestamps attributes will be updated. Will not do anything if timestamps attribute were not specified. Defaults to true.
     */
-    updateTimestamps: boolean;
+    updateTimestamps?: boolean;
+    /**
+     * Specifies what should be returned after update successfully completes.
+     */
+    returnValues?:
+      | "NONE"
+      | "ALL_OLD"
+      | "UPDATED_OLD"
+      | "ALL_NEW"
+      | "UPDATED_NEW";
+    /**
+     * An expression for a conditional update. See the AWS documentation for more information about condition expressions.
+     */
+    condition?: string;
+    /**
+     * A map of name substitutions for the condition expression.
+     */
+    conditionNames?: any;
+    /**
+     * A map of values for the condition expression. Note that in order for automatic object conversion to work, the keys in this object must match schema attribute names.
+     */
+    conditionValues?: any;
   }
 
 
@@ -348,9 +367,9 @@ declare module "dynamoose" {
 
     delete(key: KeySchema, callback?: (err: Error) => void): Promise<undefined>;
 
-    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options: UpdateOption, callback: (err: Error, items: ModelSchema<DataSchema>[]) => void): void;
+    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options: UpdateOptions, callback: (err: Error, items: ModelSchema<DataSchema>[]) => void): void;
     update(key: KeySchema, update: UpdateUpdate<DataSchema>, callback: (err: Error, items: ModelSchema<DataSchema>[]) => void): void;
-    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options?: UpdateOption): Promise<ModelSchema<DataSchema>>;
+    update(key: KeySchema, update: UpdateUpdate<DataSchema>, options?: UpdateOptions): Promise<ModelSchema<DataSchema>>;
 
     conditionCheck(key: KeySchema, options?: ConditionOptions): void
   }