Format unformatted JSON strings
This will take unformatted json string as input and give formatted json string as output.
Example:
Before
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{"f_name":"Rohit", "l_name":"Moga", "age":26, "car":null}
After
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{
"f_name": "Rohit",
"l_name": "Moga",
"age": 26,
"car": null
}