You can search for identifiers within the package.
in-package search v0.2.0
melange.js_parser
Flow_ast.ModuleRefLiteral
type ('M, 'T) t = {
value : string;
require_out : 'T;
prefix_len : int;
legacy_interop : bool;
raw : string;
comments : ('M, unit) Syntax.t option;
}