Function parse_object_literal_array 

pub fn parse_object_literal_array(
    s: &str,
) -> Option<Result<Vec<HashMap<String, Value>>, String>>

Parse [{ ... }, { ... }] — an array of object literals for batch insert.

Returns None if the input doesn’t start with [ (not an array literal). Returns Some(Err(msg)) on parse errors. Returns Some(Ok(vec)) on success — each element must be an object.