{
"$t": "VarStmt",
"declaration": {
"$t": "VarDecl",
"mode": "Let",
"declarators": [
{
"pattern": { "$t": "IdentifierPattern", "name": "a" },
"initializer": {
"$t": "LiteralNumberExpr",
"value": 1.0
}
},
{
"pattern": { "$t": "IdentifierPattern", "name": "b" },
"initializer": null
}
]
}
}