Retrieves a bookings custom attribute definition.
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The key of the custom attribute definition to retrieve. If the requesting application is not the definition owner, you must use the qualified key.
A string that contains no characters. In an API request this value will appear as ''. Can be used to remove a field’s value.
''
The current version of the custom attribute definition, which is used for strongly consistent reads to guarantee that you receive the most up-to-date data. When included in the request, Square returns the specified version or a higher version if one exists. If the specified version is higher than the current version, Square returns a BAD_REQUEST error.
BAD_REQUEST
// No response received yet.