You can search for identifiers within the package.
in-package search v0.2.0
type field_element = Cstruct.t
val field_element_grammar : field_element Asn.t
type curve = {
a : field_element;
b : field_element;
seed : Cstruct.t option;
}
val curve_grammar : curve Asn.t
type t = {
field : Field.t;
curve : curve;
base : point;
order : Z.t;
cofactor : Z.t option;
val grammar : t Asn.t