Convert dataset to Parquet

Convert dataset to Parquet.

README.md

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+---
+dataset_info:
+  features:
+  - name: name
+    dtype: string
+  - name: gender
+    dtype: string
+  - name: age
+    dtype: int64
+  splits:
+  - name: train
+    num_bytes: 102
+    num_examples: 4
+  - name: test
+    num_bytes: 50
+    num_examples: 2
+  download_size: 3364
+  dataset_size: 152
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/train-*
+  - split: test
+    path: data/test-*
+---

data/test-00000-of-00001.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:1a4f44aa195ecadf54e5676955309c5261d05f687fd2051e62f26feae09c5dfd
+size 1668

data/train-00000-of-00001.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:cc2645041c70b795ee2603a2f05b6f8074a7893ae7195c5165a04920db2f8627
+size 1696