# Test case 1
{a}
a
# Test case 2
{a{b{c}{d{e}}}{f{g}{h{i{j}{k}}}}{l{m}}}
a,b,c,d,e,f,g,h,i,j,k,l,m
# Test case 3
{"a{"b"}}
"a,"b"
# Test case 4
{\{a{\{b\}}}
\{a,\{b\}
# Test case 5
{}

# Test case 6
{{}}
,
# Test case 7
{"a{\{b\}}{}}
"a,\{b\},
# Test case 8
{a{\{[b],\{key:"value"\}\}{}}}
a,\{[b],\{key:"value"\}\},
