Found json={}
Found json={}
Found json=[]
Found json=[]
Found json={"1" : 1, "1" : "2"}
Found json={"1": 1}
Found json={"1": 1}
Found json={ "a" : 1 } 
Found json=1
Found json={"a": 1, "a": 2}
Found json={"a": 1, "a": 2}
Found json={"a": 1, "a": 2}
Found json=123.45
Found json=true
Found json=" 123.45"
Found json="2020-06-07T01:02:03"
Found json={}
Found json={}
Found json={ "a" : 1 } 
Found json={ "a" : 1 } 
Found json=1
Found json={ "a" : 1 } 
Found is_json[0]: true
Found is_json[1]: false
Found is_json[2]: true
Found is_json[3]: true
Found is_json[4]: false
Found is_json[5]: false
Found is_json[6]: true
Found is_json[7]: false