chore(core): improve encapsulation and remove unused exports (#19556)

packages/core/src/telemetry/semantic.ts

@@ -240,7 +240,7 @@ export function toChatMessage(content?: Content): ChatMessage {
   return message;
 }
 
-export function toOTelPart(part: Part): AnyPart {
+function toOTelPart(part: Part): AnyPart {
   if (part.thought) {
     if (part.text) {
       return new ReasoningPart(part.text);
@@ -287,7 +287,7 @@ export enum OTelRole {
   TOOL = 'tool',
 }
 
-export function toOTelRole(role?: string): OTelRole {
+function toOTelRole(role?: string): OTelRole {
   switch (role?.toLowerCase()) {
     case 'system':
       return OTelRole.SYSTEM;
@@ -322,7 +322,7 @@ export enum OTelFinishReason {
   ERROR = 'error',
 }
 
-export function toOTelFinishReason(finishReason?: string): OTelFinishReason {
+function toOTelFinishReason(finishReason?: string): OTelFinishReason {
   switch (finishReason) {
     // we have significantly more finish reasons than the spec
     case FinishReason.FINISH_REASON_UNSPECIFIED:
@@ -376,7 +376,7 @@ export interface ChatMessage {
   parts: AnyPart[];
 }
 
-export class TextPart {
+class TextPart {
   readonly type = 'text';
   content: string;
 
@@ -385,7 +385,7 @@ export class TextPart {
   }
 }
 
-export class ToolCallRequestPart {
+class ToolCallRequestPart {
   readonly type = 'tool_call';
   name?: string;
   id?: string;
@@ -398,7 +398,7 @@ export class ToolCallRequestPart {
   }
 }
 
-export class ToolCallResponsePart {
+class ToolCallResponsePart {
   readonly type = 'tool_call_response';
   response?: string;
   id?: string;
@@ -409,7 +409,7 @@ export class ToolCallResponsePart {
   }
 }
 
-export class ReasoningPart {
+class ReasoningPart {
   readonly type = 'reasoning';
   content: string;
 
@@ -418,7 +418,7 @@ export class ReasoningPart {
   }
 }
 
-export class GenericPart {
+class GenericPart {
   type: string;
   [key: string]: unknown;