Skip to content

context

ASSISTANT_ROLE module-attribute 

ASSISTANT_ROLE = MessageRole(ASSISTANT)

The assistant role with name not specified.

MaybeOneOrMany module-attribute 

MaybeOneOrMany = Union[_T, Sequence[_T], None]

A type that can be either a single item, a sequence of items, or None.

OneOrMany module-attribute 

OneOrMany = Union[_T, Sequence[_T]]

A type that can be either a single item or a sequence of items.

SYSTEM_ROLE module-attribute 

SYSTEM_ROLE = MessageRole(SYSTEM)

The system role with name not specified.

StrOrImg module-attribute 

StrOrImg = Union[String, Image]

A type that can be either a string or an image.

String module-attribute 

String = Union[StringFuture, str]

String is a type alias for StringFuture or str.

TOOL_ROLE module-attribute 

TOOL_ROLE = MessageRole(TOOL)

The tool role with name not specified.

USER_ROLE module-attribute 

USER_ROLE = MessageRole(USER)

The user role with name not specified.

CallFuture 

CallFuture(
    func: Callable,
    *args: Any,
    use_process: bool = False,
    lazy_eval: bool = False,
    **kwargs: Any
)

Bases: FutureValue

Represent a function call that may not be ready yet.

Parameters:

  • func (Callable) –

    The function to call.

  • *args (Any, default: () ) –

    The arguments of the function.

  • use_process (bool, default: False ) –

    Whether to use a process pool executor.

  • lazy_eval (bool, default: False ) –

    Whether to delay the start of the call until needed.

  • **kwargs (Any, default: {} ) –

    The keyword arguments of the function.

Source code in src/appl/core/types/futures.py 
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
def __init__(
    self,
    func: Callable,
    *args: Any,
    use_process: bool = False,
    lazy_eval: bool = False,
    **kwargs: Any,
):
    """Initialize the CallFuture.

    Args:
        func: The function to call.
        *args: The arguments of the function.
        use_process: Whether to use a process pool executor.
        lazy_eval: Whether to delay the start of the call until needed.
        **kwargs: The keyword arguments of the function.
    """
    # ? maybe use a global executor from the config, or use thread-level executor if running in multi-threading.
    self._executor = (
        ProcessPoolExecutor(max_workers=1)
        if use_process
        else ThreadPoolExecutor(
            max_workers=1, thread_name_prefix=threading.current_thread().name
        )
    )
    self._submit_fn = lambda: self._executor.submit(func, *args, **kwargs)
    self._submitted = False
    self._info = func.__name__
    # self._debug = False
    # if self._debug:
    #     # arg and kwargs might contains future objects
    #     args_list = [f"{arg}" for arg in args] + [
    #         f"{k}={v!r}" for k, v in kwargs.items()
    #     ]
    #     args_str = ", ".join(args_list)
    #     self._info += f"({args_str})"
    if not lazy_eval:
        # delay the start of the call until needed
        self._submit()

future property 

future

The future object of the call.

val property 

val

The value of the future.

cancel 

cancel() -> bool

Cancel the call.

Source code in src/appl/core/types/futures.py 
89
90
91
92
93
94
95
def cancel(self) -> bool:
    """Cancel the call."""
    # Attempt to cancel the call
    res = self.future.cancel()
    if res:
        self._executor.shutdown()  # the executor is not needed anymore
    return res

done 

done() -> bool

Check if the call has completed.

Source code in src/appl/core/types/futures.py 
 97
 98
 99
100
def done(self) -> bool:
    """Check if the call has completed."""
    # Check if the future has completed
    return self.future.done()

result 

result(timeout: Optional[float] = None) -> Any

Get the result of the call.

Source code in src/appl/core/types/futures.py 
82
83
84
85
86
87
def result(self, timeout: Optional[float] = None) -> Any:
    """Get the result of the call."""
    # This will block until the result is available
    res = self.future.result(timeout)
    self._executor.shutdown()  # the executor is not needed anymore
    return res

CmpStringFuture 

CmpStringFuture(
    a: StringFuture,
    b: StringFuture,
    op: Callable[[str, str], bool],
)

Bases: FutureValue

Represent a comparison between a StringFuture and another value.

Source code in src/appl/core/types/futures.py 
116
117
118
119
120
121
122
def __init__(
    self, a: "StringFuture", b: "StringFuture", op: Callable[[str, str], bool]
):
    """Initialize the CmpStringFuture."""
    self._a = a
    self._b = b
    self._op = op

val property 

val

The value of the future.

ContentList

Bases: BaseModel

Represent a list of contents containing text and images.

append 

append(content: StrOrImg) -> None

Append a content to the list.

If the last content is a string, it will be concatenated with the new content.

Source code in src/appl/core/types/content.py 
76
77
78
79
80
81
82
83
84
def append(self, content: StrOrImg) -> None:
    """Append a content to the list.

    If the last content is a string, it will be concatenated with the new content.
    """
    if is_string(content) and len(self.contents) and is_string(self.contents[-1]):
        self.contents[-1] += content  # type: ignore
    else:
        self.contents.append(content)

extend 

extend(contents: list[StrOrImg]) -> None

Extend the list with multiple contents.

Source code in src/appl/core/types/content.py 
86
87
88
89
def extend(self, contents: list[StrOrImg]) -> None:
    """Extend the list with multiple contents."""
    for content in contents:
        self.append(content)

get_contents 

get_contents() -> List[Dict[str, Any]]

Return the contents as a list of dictionaries.

Source code in src/appl/core/types/content.py 
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
def get_contents(self) -> List[Dict[str, Any]]:
    """Return the contents as a list of dictionaries."""

    def get_dict(content):
        if isinstance(content, Image):
            image_args = {"url": content.url}
            if content.detail:
                image_args["detail"] = content.detail
            return {"type": "image_url", "image_url": image_args}
        return {"type": "text", "text": str(content)}

    return [get_dict(c) for c in self.contents]

FutureValue

Bases: ABC

Represents a value that may not be ready yet.

val property 

val

The value of the future.

Image 

Image(url: str, detail: Optional[str] = None)

Bases: BaseModel

Represent an image in the message.

See the guide for more information about the detail level.

Source code in src/appl/core/types/content.py 
24
25
26
27
28
29
30
def __init__(self, url: str, detail: Optional[str] = None) -> None:
    """Initialize the image with the URL and detail level.

    See [the guide](https://platform.openai.com/docs/guides/vision/low-or-high-fidelity-image-understanding)
    for more information about the detail level.
    """
    super().__init__(url=url, detail=detail)

from_file classmethod 

from_file(
    file: PathLike, detail: Optional[str] = None
) -> Image

Construct an image prompt from an image file.

Source code in src/appl/core/types/content.py 
43
44
45
46
47
@classmethod
def from_file(cls, file: PathLike, detail: Optional[str] = None) -> "Image":
    """Construct an image prompt from an image file."""
    image = PIL.Image.open(file)
    return cls.from_image(image, detail)

from_image classmethod 

from_image(
    image: ImageFile, detail: Optional[str] = None
) -> Image

Construct an image prompt from a PIL ImageFile.

Source code in src/appl/core/types/content.py 
32
33
34
35
36
37
38
39
40
41
@classmethod
def from_image(cls, image: ImageFile, detail: Optional[str] = None) -> "Image":
    """Construct an image prompt from a PIL ImageFile."""
    buffered = BytesIO()
    # Save the image to the buffer in PNG format
    image.save(buffered, format="PNG")
    # Get the byte data from the buffer
    img_byte = buffered.getvalue()
    img_base64 = base64.b64encode(img_byte).decode("utf-8")
    return cls(url=f"data:image/png;base64,{img_base64}", detail=detail)

MessageRole 

MessageRole(
    type: Optional[str] = None, name: Optional[str] = None
)

Bases: BaseModel

The role of the message owner.

Parameters:

  • type (Optional[str], default: None ) –

    The type of the role.

  • name (Optional[str], default: None ) –

    An optional name for the role, differentiate between roles of the same type."

Source code in src/appl/core/types/role.py 
16
17
18
19
20
21
22
23
def __init__(self, type: Optional[str] = None, name: Optional[str] = None):
    """Initialize the MessageRole object.

    Args:
        type: The type of the role.
        name: An optional name for the role, differentiate between roles of the same type."
    """
    super().__init__(type=type, name=name)

is_assistant property 

is_assistant: bool

Whether the role is an assistant role.

is_system property 

is_system: bool

Whether the role is a system role.

is_tool property 

is_tool: bool

Whether the role is a tool role.

is_user property 

is_user: bool

Whether the role is a user role.

get_dict 

get_dict() -> Dict[str, Any]

Get the role as a dictionary.

Source code in src/appl/core/types/role.py 
45
46
47
48
49
50
def get_dict(self) -> Dict[str, Any]:
    """Get the role as a dictionary."""
    data = {"role": self.type}
    if self.name:
        data["name"] = self.name
    return data

PromptContext 

PromptContext(globals_: Optional[Namespace] = None)

The context of the APPL function.

Parameters:

  • globals_ (Optional[Namespace], default: None ) –

    The global namespace of the APPL function.

Source code in src/appl/core/context.py 
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
def __init__(self, globals_: Optional[Namespace] = None):
    """Initialize the PromptContext object.

    Args:
        globals_: The global namespace of the APPL function.
    """
    if globals_ is None:
        # create a new namespace (should inside __init__)
        globals_ = Namespace()
    self.globals = globals_
    # set default values
    if "messages" not in globals_:
        self.messages = Conversation(system_messages=[], messages=[])
    if "printer" not in globals_:
        self.printer = PromptPrinter()
    if "is_outmost" not in globals_:
        self.is_outmost = True

    # local vars start with "_"
    self.locals = Namespace()
    self._records = PromptRecords()
    self._func_name: Optional[str] = None
    self._func_docstring: Optional[str] = None
    self._include_docstring: bool = False
    self._docstring_quote_count: Optional[int] = None
    self._is_first_str: bool = True

records property 

records: PromptRecords

The prompt records of the context.

add_image 

add_image(img: Image) -> None

Add an image to the prompt context.

Source code in src/appl/core/context.py 
57
58
59
60
def add_image(self, img: Image) -> None:
    """Add an image to the prompt context."""
    self.messages.extend(self.printer(img))
    self.records.record(img)

add_message 

add_message(message: BaseMessage) -> None

Add a message to the prompt context.

Source code in src/appl/core/context.py 
62
63
64
65
def add_message(self, message: BaseMessage) -> None:
    """Add a message to the prompt context."""
    self.messages.extend(self.printer(message))
    self.records.record(message)

add_records 

add_records(
    records: PromptRecords, write_to_prompt: bool = True
) -> None

Add prompt records to the prompt context.

Source code in src/appl/core/context.py 
67
68
69
70
71
def add_records(self, records: PromptRecords, write_to_prompt: bool = True) -> None:
    """Add prompt records to the prompt context."""
    if write_to_prompt:
        self.messages.extend(self.printer(records))
    self.records.extend(records)

add_string 

add_string(string: String) -> None

Add a string to the prompt context.

Source code in src/appl/core/context.py 
50
51
52
53
54
55
def add_string(self, string: String) -> None:
    """Add a string to the prompt context."""
    if isinstance(string, str):
        string = StringFuture(string)
    self.messages.extend(self.printer(string))
    self.records.record(string)

copy 

copy() -> 'PromptContext'

Create a new prompt context that copies the globals.

Source code in src/appl/core/context.py 
83
84
85
def copy(self) -> "PromptContext":
    """Create a new prompt context that copies the globals."""
    return PromptContext(globals_=deepcopy(self.globals))

inherit 

inherit() -> 'PromptContext'

Create a new prompt context that has the same globals.

Source code in src/appl/core/context.py 
87
88
89
def inherit(self) -> "PromptContext":
    """Create a new prompt context that has the same globals."""
    return PromptContext(globals_=self.globals)

pop_printer 

pop_printer() -> None

Pop a printer state from the prompt context.

Source code in src/appl/core/context.py 
78
79
80
81
def pop_printer(self) -> None:
    """Pop a printer state from the prompt context."""
    self.printer.pop()
    self.records.record(PrinterPop())

push_printer 

push_printer(push_args: PrinterPush) -> None

Push a new printer state to the prompt context.

Source code in src/appl/core/context.py 
73
74
75
76
def push_printer(self, push_args: PrinterPush) -> None:
    """Push a new printer state to the prompt context."""
    self.printer.push(push_args)
    self.records.record(push_args)

set_records 

set_records(records: PromptRecords) -> None

Set the prompt records of the context.

Source code in src/appl/core/context.py 
46
47
48
def set_records(self, records: PromptRecords) -> None:
    """Set the prompt records of the context."""
    self._records = records

ResponseType

Bases: str, Enum

The type of generation response.

IMAGE class-attribute instance-attribute 

IMAGE = 'image'

An image.

OBJECT class-attribute instance-attribute 

OBJECT = 'obj'

An instance of a response model.

TEXT class-attribute instance-attribute 

TEXT = 'text'

A text completion.

TOOL_CALL class-attribute instance-attribute 

TOOL_CALL = 'tool_calls'

A list of tool calls.

UNFINISHED class-attribute instance-attribute 

UNFINISHED = 'unfinished'

The response is not finished.

StringFuture 

StringFuture(content: Any = '', set_value: bool = False)

Bases: FutureValue, BaseModel

StringFuture is a string that may not be ready yet.

Source code in src/appl/core/types/futures.py 
136
137
138
139
140
141
142
143
144
def __init__(self, content: Any = "", set_value: bool = False):
    """Initialize the StringFuture."""
    if set_value:
        if not isinstance(content, List):
            raise ValueError("Cannot set value to non-list.")
        s = content
    else:
        s = [content]
    super().__init__(s=s)

val property 

val

The value of the future.

from_list classmethod 

from_list(content: List[Any]) -> StringFuture

Create a StringFuture from a list of content.

Source code in src/appl/core/types/futures.py 
146
147
148
149
@classmethod
def from_list(cls, content: List[Any]) -> "StringFuture":
    """Create a StringFuture from a list of content."""
    return cls(content, set_value=True)

join 

join(iterable: Iterable[StringFuture]) -> StringFuture

Concatenate any number of strings.

The StringFuture whose method is called is inserted in between each given StringFuture. The result is returned as a new StringFuture.

Source code in src/appl/core/types/futures.py 
163
164
165
166
167
168
169
170
171
172
173
174
def join(self, iterable: Iterable["StringFuture"]) -> "StringFuture":
    """Concatenate any number of strings.

    The StringFuture whose method is called is inserted in between each
    given StringFuture. The result is returned as a new StringFuture.
    """
    result = []
    for i, x in enumerate(iterable):
        if i != 0:
            result.append(self)
        result.append(x)
    return StringFuture.from_list(result)

materialized 

materialized() -> StringFuture

Materialize the StringFuture.

Source code in src/appl/core/types/futures.py 
154
155
156
157
def materialized(self) -> "StringFuture":
    """Materialize the StringFuture."""
    self.s = [self._collapse()]
    return self

serialize 

serialize() -> str

Serialize the StringFuture.

Source code in src/appl/core/types/futures.py 
159
160
161
def serialize(self) -> str:
    """Serialize the StringFuture."""
    return str(self)

is_string 

is_string(s: Any) -> bool

Check if the object is a StringFuture or str.

Source code in src/appl/core/types/futures.py 
256
257
258
def is_string(s: Any) -> bool:
    """Check if the object is a StringFuture or str."""
    return isinstance(s, StringFuture) or isinstance(s, str)