KeyView 23.3

# at

Returns a reference to the MetadataElement whose standard key matches the `standard_key` argument. Throws `std::out_of_range` if there is no matching element in the list.

## Syntax

    const MetadataElement& at(MetadataKey standard_key) const;

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Version 23.3 | Last updated June 2023

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Product: IDOL KeyView 23.3

Topic Title: at