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   1 # void pq\Statement::descAsync(callable $callback)
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   3 [Asynchronously](pq/Connection/: Asynchronous Usage) describe the parameters of the prepared statement.
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   5 ## Params:
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   7 * callable $callback as function(array $oids)
   8   A callback to receive list of type OIDs of the substitution parameters.
   9
  10 ## Throws:
  11
  12 * pq\Exception\InvalidArgumentException
  13 * pq\Exception\BadMethodCallException
  14 * pq\Exception\RuntimeException