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writeAllowPartialSuccessAsync

Note

This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information.

public function writeAllowPartialSuccessAsync(
  string $data,
  ?int $timeout_nanos = NULL,
): Awaitable<int>;

Parameters​

  • string $data
  • ?int $timeout_nanos = NULL

Returns​