types DataSnapshot and IteratedDataSnapshot

[lucasshz]

I am having this typescript issue, firebase-functions 4.4.1

node_modules/firebase-functions/lib/common/providers/database.d.ts:80:5 - error TS2416: Property 'child' in type 'DataSnapshot' is not assignable to the same property in base type 'DataSnapshot'.
Type '(childPath: string) => DataSnapshot' is not assignable to type '(path: string) => DataSnapshot'.
Call signature return types 'DataSnapshot' and 'DataSnapshot' are incompatible.
The types of 'forEach' are incompatible between these types.
Type '(action: (a: DataSnapshot) => boolean | void) => boolean' is not assignable to type '(action: (a: IteratedDataSnapshot) => boolean | void) => boolean'.
Types of parameters 'action' and 'action' are incompatible.
Types of parameters 'a' and 'a' are incompatible.
Type 'DataSnapshot' is not assignable to type 'IteratedDataSnapshot'.
Types of property 'key' are incompatible.
Type 'string | null' is not assignable to type 'string'.
Type 'null' is not assignable to type 'string'.

80 child(childPath: string): DataSnapshot;
~~~~~

node_modules/firebase-functions/lib/common/providers/database.d.ts:100:5 - error TS2416: Property 'forEach' in type 'DataSnapshot' is not assignable to the same property in base type 'DataSnapshot'.
Type '(action: (a: DataSnapshot) => boolean | void) => boolean' is not assignable to type '(action: (a: IteratedDataSnapshot) => boolean | void) => boolean'.

100 forEach(action: (a: DataSnapshot) => boolean | void): boolean;
~~~~~~~

Found 2 errors in the same file, starting at: node_modules/firebase-functions/lib/common/providers/database.d.ts:80

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[lucasshz]

solved based on this topic #1442