Get flood gauge information
Value
A one-row tibble of gauge metadata for the selected pegelnummer.
Columns are created dynamically from the upstream service response fields.
If the response contains GeoJSON features, each feature's properties are
used as columns; otherwise each top-level field becomes a column. Scalar
values become atomic columns and nested structures become list-columns.
Details
Returns metadata for a single flood gauge (pegel) from hochwasserzentralen.de. API documentation: https://bundesapi.github.io/hochwasserzentralen-api/.