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2026-07-13 12:49:10 +08:00

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Go

/*
* Copyright 2024 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package callbacks
import (
"context"
"github.com/cloudwego/eino/components"
"github.com/cloudwego/eino/schema"
)
type RunInfo struct {
// Name is the graph node name for display purposes, not unique.
// Passed from compose.WithNodeName().
Name string
Type string
Component components.Component
}
type CallbackInput any
type CallbackOutput any
type Handler interface {
OnStart(ctx context.Context, info *RunInfo, input CallbackInput) context.Context
OnEnd(ctx context.Context, info *RunInfo, output CallbackOutput) context.Context
OnError(ctx context.Context, info *RunInfo, err error) context.Context
OnStartWithStreamInput(ctx context.Context, info *RunInfo,
input *schema.StreamReader[CallbackInput]) context.Context
OnEndWithStreamOutput(ctx context.Context, info *RunInfo,
output *schema.StreamReader[CallbackOutput]) context.Context
}
type CallbackTiming uint8
type TimingChecker interface {
Needed(ctx context.Context, info *RunInfo, timing CallbackTiming) bool
}