LocalAI/pkg/functions/functions.go
Ettore Di Giacinto efa32a2677
feat(grammar): support models with specific construct (#2291)
When enabling grammar with functions, it might be useful to
allow more flexibility to support models that are fine-tuned against returning
function calls of the form of { "name": "function_name", "arguments" {...} }
rather then { "function": "function_name", "arguments": {..} }.

This might call out to a more generic approach later on, but for the moment being we can easily support both
as we have just to specific different types.

If needed we can expand on this later on

Signed-off-by: mudler <mudler@localai.io>
2024-05-12 01:13:22 +02:00

115 lines
3.0 KiB
Go

package functions
import (
"encoding/json"
"github.com/rs/zerolog/log"
)
type Function struct {
Name string `json:"name"`
Description string `json:"description"`
Parameters map[string]interface{} `json:"parameters"`
}
type Functions []Function
type Tool struct {
Type string `json:"type"`
Function Function `json:"function,omitempty"`
}
type Tools []Tool
// ToJSONFunctionStructure converts a list of functions to a JSON structure that can be parsed to a grammar
// This allows the LLM to return a response of the type: { "function": "function_name", "arguments": { "arg1": "value1", "arg2": "value2" } }
func (f Functions) ToJSONFunctionStructure() JSONFunctionStructureFunction {
js := JSONFunctionStructureFunction{}
for _, function := range f {
// t := function.Parameters["type"]
//tt := t.(string)
properties := function.Parameters["properties"]
defs := function.Parameters["$defs"]
dat, _ := json.Marshal(properties)
dat2, _ := json.Marshal(defs)
prop := map[string]interface{}{}
defsD := map[string]interface{}{}
err := json.Unmarshal(dat, &prop)
if err != nil {
log.Error().Err(err).Msg("error unmarshalling dat")
}
err = json.Unmarshal(dat2, &defsD)
if err != nil {
log.Error().Err(err).Msg("error unmarshalling dat2")
}
if js.Defs == nil {
js.Defs = defsD
}
js.OneOf = append(js.OneOf, ItemFunction{
Type: "object",
Properties: FunctionProperties{
Function: FunctionName{Const: function.Name},
Arguments: Argument{
Type: "object",
Properties: prop,
},
},
})
}
return js
}
// ToJSONNameStructure converts a list of functions to a JSON structure that can be parsed to a grammar
// This allows the LLM to return a response of the type: { "name": "function_name", "arguments": { "arg1": "value1", "arg2": "value2" } }
func (f Functions) ToJSONNameStructure() JSONFunctionStructureName {
js := JSONFunctionStructureName{}
for _, function := range f {
// t := function.Parameters["type"]
//tt := t.(string)
properties := function.Parameters["properties"]
defs := function.Parameters["$defs"]
dat, _ := json.Marshal(properties)
dat2, _ := json.Marshal(defs)
prop := map[string]interface{}{}
defsD := map[string]interface{}{}
err := json.Unmarshal(dat, &prop)
if err != nil {
log.Error().Err(err).Msg("error unmarshalling dat")
}
err = json.Unmarshal(dat2, &defsD)
if err != nil {
log.Error().Err(err).Msg("error unmarshalling dat2")
}
if js.Defs == nil {
js.Defs = defsD
}
js.OneOf = append(js.OneOf, ItemName{
Type: "object",
Properties: NameProperties{
Function: FunctionName{Const: function.Name},
Arguments: Argument{
Type: "object",
Properties: prop,
},
},
})
}
return js
}
// Select returns a list of functions containing the function with the given name
func (f Functions) Select(name string) Functions {
var funcs Functions
for _, f := range f {
if f.Name == name {
funcs = []Function{f}
break
}
}
return funcs
}