difftastic/vendored_parsers/tree-sitter-hack/test/cases/expressions/lambda-with-capabilities.exp

(script
  (expression_statement
    (lambda_expression
      (parameters)
      (capability_list)
      (compound_statement)))
  (expression_statement
    (lambda_expression
      (parameters)
      (capability_list
        (capability
          (identifier)))
      (compound_statement
        (echo_statement
          (string))))))