René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Using string array with magic block results in whitespace removal from first entry of the array","articleBody":"On passing a dict ` { 'cats': ['apple orange', 'pear plum']}` as params in bigquery magic cell, the first value is changed to `appleorange` - the space character is filtered out.\r\n\r\n#### Environment details\r\n\r\n  - OS type and version: colab\r\n  - Python version: Python 3.6.9\r\n  - pip version: 19.3.1\r\n  - `google-cloud-bigquery` version: 1.21.0\r\n\r\n#### Steps to reproduce\r\n\r\nA colab notebook illustrating the error:\r\nhttps://colab.research.google.com/gist/amardeep/63ec303ba8bac3db9849f4044cd19ff1/test-bigquery-array-parameter-bug.ipynb\r\n  \r\n#### Code example\r\n\r\n```python\r\nparams = {\r\n    'cats': ['apple orange', 'pear plum']\r\n}\r\n\r\n%%bigquery  --params $params\r\nSELECT * FROM UNNEST(@cats)\r\n```\r\n\r\nThis results in the output:\r\n```\r\n           f0_\r\n0  appleorange\r\n1    pear plum\r\n```\r\n","author":{"url":"https://github.com/amardeep","@type":"Person","name":"amardeep"},"datePublished":"2020-07-14T08:34:29.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/166/python-bigquery/issues/166"}