// the jscodeshift api has been assigned to j previously

const ast = j(source);

// find all MemberExpressions on object `obj.`
ast
  .find(j.MemberExpression, {
    object: {
      name: "obj",
    },
  })
  .filter((path) => {
    const { name } = path.value.property;
    // filter all accessed properties that starts with `get`
    return /^get[A-Z].*/.test(name);
  });