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<th class="colFirst" scope="row"><a href="MapType.html" title="class in hydra.ext.io.delta.parquet">MapType</a></th>
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<div class="block">Data type representing a map type.</div>
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<th class="colFirst" scope="row"><a href="StructField.html" title="class in hydra.ext.io.delta.parquet">StructField</a></th>
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<div class="block">Represents a subfield of StructType with additional properties and metadata.</d