Function readJSONStream

Example

>>> const readStream = new Stream.Readable({read(){}});
>>> readStream.push(`${JSON.stringify({a: 1, b: 2})} \n`);
>>> readStream.push(`${JSON.stringify({a: 2, b: 2})} \n`);
>>> readStream.push(`${JSON.stringify({a: 3, b: 2})} \n`);
>>> readStream.push(`${JSON.stringify({a: 4, b: 2})} \n`);
>>> readStream.push(null);

>>> pl.readJSONStream(readStream, { format: "lines" }).then(df => console.log(df));
shape: (4, 2)
┌─────┬─────┐
│ a   ┆ b   │
│ --- ┆ --- │
│ i64 ┆ i64 │
╞═════╪═════╡
│ 1   ┆ 2   │
├╌╌╌╌╌┼╌╌╌╌╌┤
│ 2   ┆ 2   │
├╌╌╌╌╌┼╌╌╌╌╌┤
│ 3   ┆ 2   │
├╌╌╌╌╌┼╌╌╌╌╌┤
│ 4   ┆ 2   │
└─────┴─────┘
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