[Firebase AI] Add code snippets for countTokens
#14940
Merged
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Added code snippets for
countTokens
functionality, both text-only and multimodal versions. These should be used in the Count Tokens docs. See #14934 for more context.Note: These have intentionally removed the example usage of
totalBillableCharacters
since, for Gemini 2.0 series models and newer, both Vertex AI and the Gemini Developer API bill by token counts instead of character counts. Additionally,totalBillableCharacters
is not reported by the Gemini Developer API so the value isnil
.#no-changelog