$metadata/EntityTypes: multiple keys definition not supported

[TheOnly040]

Hi,

When an EntityType contains multiple keys, it only display the first @Edm.Key refered inside the model

Example:
EntityType Definition
export class RoleAssignment extends PersistentObject {
@Edm.Key
@edm.String
@Edm.MaxLength(255)
@Edm.Annotate({
term: "UI.DisplayName",
string: "User id"
})
UserId: string;

@Edm.Key 
@Edm.String
@Edm.MaxLength(20)
@Edm.Annotate({
    term: "UI.DisplayName",
    string: "Role id"
})
RoleId: string;

...

$metadata response
EntityType Name="RoleAssignment">

Proposed correction
File: src/edm.ts
From line: 208
@parseAs(new AttributeFunctionChain(
(d, i) =>d.key,
(props, i) => props || [],
(props, i) => props.map(prop => new Key(prop, i)),
(props) => {
return {
propertyRefs: props.reduce((aRefs, mProp) => aRefs.concat(mProp.propertyRefs), [])
};
/return props[0];/
}
))

instead of
@parseAs(new AttributeFunctionChain(
(d, i) =>d.key,
(props, i) => props || [],
(props, i) => props.map(prop => new Key(prop, i)),
(props) => return props[0]
))

Many thanks for your attention