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� Z d S( sJ Provides DescriptorPool to use as a container for proto2 descriptors.
The DescriptorPool is used in conjection with a DescriptorDatabase to maintain
a collection of protocol buffer descriptors for use when dynamically creating
message types at runtime.
For most applications protocol buffers should be used via modules generated by
the protocol buffer compiler tool. This should only be used when the type of
protocol buffers used in an application or library cannot be predetermined.
Below is a straightforward example on how to use this class:
pool = DescriptorPool()
file_descriptor_protos = [ ... ]
for file_descriptor_proto in file_descriptor_protos:
pool.Add(file_descriptor_proto)
my_message_descriptor = pool.FindMessageTypeByName('some.package.MessageType')
The message descriptor can be used in conjunction with the message_factory
module in order to create a protocol buffer class that can be encoded and
decoded.
If you want to get a Python class for the specified proto, use the
helper functions inside google.protobuf.message_factory
directly instead of this class.
s" matthewtoia@google.com (Matt Toia)i����N( t
descriptor( t descriptor_database( t
text_encodingc C s
| j d � S( sL Remove leading period from fully-qualified type name.
Due to b/13860351 in descriptor_database.py, types in the root namespace are
generated with a leading period. This function removes that prefix.
Args:
name: A str, the fully-qualified symbol name.
Returns:
A str, the normalized fully-qualified symbol name.
t .( t lstrip( t name( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt _NormalizeFullyQualifiedNameF s c C s | j d � r | j Sd Sd S( sC Returns the value of the field `options`, or None if it is not set.t optionsN( t HasFieldR t None( t descriptor_proto( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt _OptionsOrNoneU s c C sO | j oN | j j oN | j j � j oN | j t j j k oN | j t j j
k S( N( t is_extensiont containing_typet has_optionst
GetOptionst message_set_wire_formatt typeR t FieldDescriptort TYPE_MESSAGEt labelt LABEL_OPTIONAL( t field( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt _IsMessageSetExtension] s
t DescriptorPoolc B sa e Z d Z e r! d" d � Z n d" d � Z d � Z d � Z d � Z d � Z
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� Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d" d" d" d" d � Z d" d" d" d" d � Z e d � Z d � Z d � Z d � Z! d � Z" d � Z# d � Z$ d � Z% d! � Z& RS(# sG A collection of protobufs dynamically constructed by descriptor protos.c C s t j j | � S( N( R t _messageR ( t clst
descriptor_db( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt __new__j s c C sm t j � | _ | | _ i | _ i | _ i | _ i | _ i | _ t j
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d S( s� Initializes a Pool of proto buffs.
The descriptor_db argument to the constructor is provided to allow
specialized file descriptor proto lookup code to be triggered on demand. An
example would be an implementation which will read and compile a file
specified in a call to FindFileByName() and not require the call to Add()
at all. Results from this database will be cached internally here as well.
Args:
descriptor_db: A secondary source of file descriptors.
N( R t DescriptorDatabaset _internal_dbt _descriptor_dbt _descriptorst _enum_descriptorst _service_descriptorst _file_descriptorst _toplevel_extensionst collectionst defaultdictt dictt _extensions_by_namet _extensions_by_number( t selfR ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt __init__n s
c C s | j j | � d S( s Adds the FileDescriptorProto and its types to this pool.
Args:
file_desc_proto: The FileDescriptorProto to add.
N( R t Add( R* t file_desc_proto( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR, � s c C s3 d d l m } | j j | � } | j | � d S( s� Adds the FileDescriptorProto and its types to this pool.
Args:
serialized_file_desc_proto: A bytes string, serialization of the
FileDescriptorProto to add.
i����( t descriptor_pb2N( t google.protobufR. t FileDescriptorProtot
FromStringR, ( R* t serialized_file_desc_protoR. R- ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt AddSerializedFile� s c C sE t | t j � s! t d � � n | | j | j <| j | j � d S( s Adds a Descriptor to the pool, non-recursively.
If the Descriptor contains nested messages or enums, the caller must
explicitly register them. This method also registers the FileDescriptor
associated with the message.
Args:
desc: A Descriptor.
s+ Expected instance of descriptor.Descriptor.N( t
isinstanceR t
Descriptort TypeErrorR t full_namet _AddFileDescriptort file( R* t desc( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt
AddDescriptor� s
c C sE t | t j � s! t d � � n | | j | j <| j | j � d S( s� Adds an EnumDescriptor to the pool.
This method also registers the FileDescriptor associated with the enum.
Args:
enum_desc: An EnumDescriptor.
s/ Expected instance of descriptor.EnumDescriptor.N( R4 R t EnumDescriptorR6 R! R7 R8 R9 ( R* t enum_desc( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt AddEnumDescriptor� s c C s5 t | t j � s! t d � � n | | j | j <d S( s^ Adds a ServiceDescriptor to the pool.
Args:
service_desc: A ServiceDescriptor.
s2 Expected instance of descriptor.ServiceDescriptor.N( R4 R t ServiceDescriptorR6 R" R7 ( R* t service_desc( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt AddServiceDescriptor� s c C s t | t j � o | j s* t d � � n | j d k rL | | j | j <n y | j | j
| j } Wn t k
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d | j | j | j
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| j j <n d S( s; Adds a FieldDescriptor describing an extension to the pool.
Args:
extension: A FieldDescriptor.
Raises:
AssertionError: when another extension with the same number extends the
same message.
TypeError: when the specified extension is not a
descriptor.FieldDescriptor.
s! Expected an extension descriptor.sS Extensions "%s" and "%s" both try to extend message type "%s" with field number %d.N( R4 R R R R6 t extension_scopeR R$ R7 R) R
t numbert KeyErrort AssertionErrorR( R t message_type( R* t extensiont
existing_desc( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt AddExtensionDescriptor� s&
c C s | j | � d S( s� Adds a FileDescriptor to the pool, non-recursively.
If the FileDescriptor contains messages or enums, the caller must explicitly
register them.
Args:
file_desc: A FileDescriptor.
N( R8 ( R* t file_desc( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt AddFileDescriptor� s
c C s5 t | t j � s! t d � � n | | j | j <d S( s� Adds a FileDescriptor to the pool, non-recursively.
If the FileDescriptor contains messages or enums, the caller must explicitly
register them.
Args:
file_desc: A FileDescriptor.
s/ Expected instance of descriptor.FileDescriptor.N( R4 R t FileDescriptorR6 R# R ( R* RJ ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR8 s
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rr } | j ri | j j | � } qs | � n X| s� t d | � � n | j | � S( s� Gets a FileDescriptor by file name.
Args:
file_name: The path to the file to get a descriptor for.
Returns:
A FileDescriptor for the named file.
Raises:
KeyError: if the file cannot be found in the pool.
s Cannot find a file named %s( R# RD R t FindFileByNameR t! _ConvertFileProtoToFileDescriptor( R* t file_namet
file_protot error( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyRM s
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r1t d | � � n Xd S( s Gets the FileDescriptor for the file containing the specified symbol.
Args:
symbol: The name of the symbol to search for.
Returns:
A FileDescriptor that contains the specified symbol.
Raises:
KeyError: if the file cannot be found in the pool.
R s Cannot find a file containing %sN( R R R9 RD R! R" t _FindFileContainingSymbolInDbR$ t
rpartitiont FindMessageTypeByNamet extensions_by_nameRE ( R* t symbolt message_namet _t extension_namet message( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindFileContainingSymbol+ s8
c C s6 t | � } | | j k r+ | j | � n | j | S( s� Loads the named descriptor from the pool.
Args:
full_name: The full name of the descriptor to load.
Returns:
The descriptor for the named type.
Raises:
KeyError: if the message cannot be found in the pool.
( R R RR ( R* R7 ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyRT [ s
c C s6 t | � } | | j k r+ | j | � n | j | S( s� Loads the named enum descriptor from the pool.
Args:
full_name: The full name of the enum descriptor to load.
Returns:
The enum descriptor for the named type.
Raises:
KeyError: if the enum cannot be found in the pool.
( R R! RR ( R* R7 ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindEnumTypeByNamem s
c C s> t | � } | j d � \ } } } | j | � } | j | S( s Loads the named field descriptor from the pool.
Args:
full_name: The full name of the field descriptor to load.
Returns:
The field descriptor for the named field.
Raises:
KeyError: if the field cannot be found in the pool.
R ( R RS RT t fields_by_name( R* R7 RW RX t
field_namet message_descriptor( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindFieldByName s c C s> t | � } | j d � \ } } } | j | � } | j | S( s Loads the named oneof descriptor from the pool.
Args:
full_name: The full name of the oneof descriptor to load.
Returns:
The oneof descriptor for the named oneof.
Raises:
KeyError: if the oneof cannot be found in the pool.
R ( R RS RT t oneofs_by_name( R* R7 RW RX t
oneof_nameR_ ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindOneofByName� s c C s� t | � } y | j | SWn t k
r. n X| j d � \ } } } y | j | � } Wn t k
r| | j | � } n X| j | S( s Loads the named extension descriptor from the pool.
Args:
full_name: The full name of the extension descriptor to load.
Returns:
A FieldDescriptor, describing the named extension.
Raises:
KeyError: if the extension cannot be found in the pool.
R ( R R$ RD RS RT RR RU ( R* R7 RW RX RY t scope( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindExtensionByName� s
c C s | j | | S( s� Gets the extension of the specified message with the specified number.
Extensions have to be registered to this pool by calling
AddExtensionDescriptor.
Args:
message_descriptor: descriptor of the extended message.
number: integer, number of the extension field.
Returns:
A FieldDescriptor describing the extension.
Raises:
KeyError: when no extension with the given number is known for the
specified message.
( R) ( R* R_ RC ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindExtensionByNumber� s c C s t | j | j � � S( s! Gets all the known extension of a given message.
Extensions have to be registered to this pool by calling
AddExtensionDescriptor.
Args:
message_descriptor: descriptor of the extended message.
Returns:
A list of FieldDescriptor describing the extensions.
( t listR) t values( R* R_ ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindAllExtensions� s c C s6 t | � } | | j k r+ | j | � n | j | S( s Loads the named service descriptor from the pool.
Args:
full_name: The full name of the service descriptor to load.
Returns:
The service descriptor for the named service.
Raises:
KeyError: if the service cannot be found in the pool.
( R R" RR ( R* R7 ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyt FindServiceByName� s c C sv y | j j | � } Wn7 t k
rO } | j rF | j j | � } qP | � n X| si t d | � � n | j | � S( s" Finds the file in descriptor DB containing the specified symbol.
Args:
symbol: The name of the symbol to search for.
Returns:
A FileDescriptor that contains the specified symbol.
Raises:
KeyError: if the file cannot be found in the descriptor database.
s Cannot find a file containing %s( R R[ RD R RN ( R* RV RP RQ ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyRR � s
c C s | j | j k rt | j | j � � } g | j D] } | j | � ^ q4 } g | j D] } | | ^ qY } t j d | d | j d | j d | j
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t �} | j | j | j | � | _ | j | | | j | � | | j | j <q�Wx' | j D] } | j | j | | � q)W| j rdt! | j � } n d } x9 | j D]. } | j | | j | � } | | j | j <qtWxE t | j" � D]4 \ }
} | j# | |
| | j | � | j$ | j <q�W| j% | � | | j | j <n | j | j S(
sD Creates a FileDescriptor from a proto or returns a cached copy.
This method also has the side effect of loading all the symbols found in
the file into the appropriate dictionaries in the pool.
Args:
file_proto: The proto to convert.
Returns:
A FileDescriptor matching the passed in proto.
t poolR t packaget syntaxR t
serialized_pbt dependenciest public_dependenciesc s s$ | ] } t | j � | f Vq d S( N( t _PrefixWithDotR7 ( t .0t enum( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pys <genexpr>, s R t N(& R R# Rg t _GetDepst
dependencyRM t public_dependencyR RL Rl Rm R t SerializeToStringt updatet _ExtractSymbolst message_types_by_nameRh t enum_types_by_nameRF t _ConvertMessageDescriptort enum_typet _ConvertEnumDescriptorR t enumerateRG t _MakeFieldDescriptort Truet _GetTypeFromScopet extendeeR
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_SetFieldTypeRU t _SetAllFieldTypesRq t servicet _MakeServiceDescriptort services_by_nameR, ( R* RP t
built_depst nt direct_depst it public_depst file_descriptorRd Rv RF t message_descR~ t indext extension_protot extension_desct
desc_protot desc_proto_prefixR: t
service_proto( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyRN sf
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c ! C s | r! d j | | j f � } n | j } | d k r? d } n | j } | d k r] i } n g | j D]! } | j | | | | | � ^ qg } g | j D]! } | j | | | d | � ^ q� }
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� D]* \ } } | j | | | | d t �^ q } g t | j � D]B \ } } t
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| d | d | d d d d d | � } x | j D] } | | _ qMWx | j D] } | | _ qjWxa t | j � D]P \ } } | j d � r�| j } | | j j |
| � | | |
| _ q�q�W| | t | � <| | j | <| S( s� Adds the proto to the pool in the specified package.
Args:
desc_proto: The descriptor_pb2.DescriptorProto protobuf message.
package: The package the proto should be located in.
file_desc: The file containing this message.
scope: Dict mapping short and full symbols to message and enum types.
syntax: string indicating syntax of the file ("proto2" or "proto3")
Returns:
The added descriptor.
R R R R7 t filenameR
t fieldst oneofst nested_typest
enum_typest
extensionsR t
is_extendablet extension_rangesR9 t serialized_startt serialized_endRm t oneof_indexN( t joinR R t nested_typeR} R~ R R� R R� RG R� t
oneof_declR t OneofDescriptorR t extension_ranget startt endt FalseR5 R R� R
R� R R� R� t appendt containing_oneofRq R ( R* R� Rl RJ Rd Rm t desc_nameRO t nestedRs t enumsR� R R� RG R� R: R� t rR� R� t field_indext
field_descR� ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR} ] sf ..7=U(
c C s� | r! d j | | j f � } n | j } | d
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t j d | j d | d | d | d |
d | d t | � � } | | d | <| | j | <| S( s� Make a protobuf EnumDescriptor given an EnumDescriptorProto protobuf.
Args:
enum_proto: The descriptor_pb2.EnumDescriptorProto protobuf message.
package: Optional package name for the new message EnumDescriptor.
file_desc: The file containing the enum descriptor.
containing_type: The type containing this enum.
scope: Scope containing available types.
Returns:
The added descriptor
R R R7 R� R9 Rh R
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R� R R R� t valuet _MakeEnumValueDescriptorR R< R R! ( R* t
enum_protoRl RJ R
Rd t enum_nameRO R� R� Rh R: ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR � s$ 1
c ! C s� | r! d j | | j f � } n | j } t j d | j d | d | d | j d | j d d d d d d d
d d | j d t d
d d | d d d t | � d | � S( s� Creates a field descriptor from a FieldDescriptorProto.
For message and enum type fields, this method will do a look up
in the pool for the appropriate descriptor for that type. If it
is unavailable, it will fall back to the _source function to
create it. If this type is still unavailable, construction will
fail.
Args:
field_proto: The proto describing the field.
message_name: The name of the containing message.
index: Index of the field
file_desc: The file containing the field descriptor.
is_extension: Indication that this field is for an extension.
Returns:
An initialized FieldDescriptor object
R R R7 R� RC R t cpp_typeRF R~ R
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default_valueR RB R R9 N(
R� R R R RC R R R R� R ( R* t field_protoRW R� RJ R R7 ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR� � s( c C s t | � } | j | | j | � } | d k rB t | j � } n d j | | j g � } x9 t | j | j � D]" \ } } | j | | | | � qp WxT t | j | j � D]= \ } } | j | | j
| � | _ | j | | | | � q� Wx$ | j D] }
| j
| |
| � q� Wd S( s Sets all the descriptor's fields's types.
This method also sets the containing types on any extensions.
Args:
package: The current package of desc_proto.
desc_proto: The message descriptor to update.
scope: Enclosing scope of available types.
R N( Rq R� R R� t zipR R� R� RG R� R� R
R� R� ( R* Rl R� Rd t main_desct nested_packageR� R� R� R� R� ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR� s " c C s | j r$ | j | | j | � } n d } | j d � so t | t j � r] t j j | _ qo t j j
| _ n t j j | j � | _ | j t j j k s� | j t j j
k r� | | _ n | j t j j
k r� | | _ n | j t j j k rt | _ g | _ n�| j d � r&t | _ | j t j j k sJ| j t j j k r_t | j � | _ q�| j t j j k r�| j | _ q�| j t j j k r�| j j � d k | _ q�| j t j j
k r�| j j | j j | _ q�| j t j j k rt j | j � | _ q�t! | j � | _ n� t | _ | j t j j k sY| j t j j k red | _ n� | j t j j k r�d | _ ny | j t j j k r�t | _ nX | j t j j
k r�| j j" d j | _ n* | j t j j k r�d | _ n d | _ | j | _ d S( s Sets the field's type, cpp_type, message_type and enum_type.
Args:
field_proto: Data about the field in proto format.
field_desc: The descriptor to modiy.
package: The package the field's container is in.
scope: Enclosing scope of available types.
R R� t trueg u i Rt N(# t type_nameR� R R R4 R R5 R R R t TYPE_ENUMt ProtoTypeToCppProtoTypeR� t
TYPE_GROUPRF R~ R t LABEL_REPEATEDR� R� R� R� t TYPE_DOUBLEt
TYPE_FLOATt floatt TYPE_STRINGt TYPE_BOOLt lowert values_by_nameRC t
TYPE_BYTESR t CUnescapet intRh ( R* R� R� Rl Rd R: ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR� s^ c C s4 t j d | j d | d | j d t | � d d � S( s� Creates a enum value descriptor object from a enum value proto.
Args:
value_proto: The proto describing the enum value.
index: The index of the enum value.
Returns:
An initialized EnumValueDescriptor object.
R R� RC R R N( R t EnumValueDescriptorR RC R R ( R* t value_protoR� ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR� f s c
C s� | r! d j | | j f � } n | j } g t | j � D]' \ } } | j | | | | | � ^ q: } t j d | j d | d | d | d t | � d | � }
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S( s� Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.
Args:
service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
service_index: The index of the service in the File.
scope: Dict mapping short and full symbols to message and enum types.
package: Optional package name for the new message EnumDescriptor.
file_desc: The file containing the service descriptor.
Returns:
The added descriptor.
R R R7 R� t methodsR R9 ( R� R R� t methodt _MakeMethodDescriptorR R? R R" ( R* R� t
service_indexRd Rl RJ t service_nameR� t method_protoR� R: ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR� x s :
c C s� d j | | j f � } | j | | j | � } | j | | j | � } t j d | j d | d | d d d | d | d t | � � S(
s� Creates a method descriptor from a MethodDescriptorProto.
Args:
method_proto: The proto describing the method.
service_name: The name of the containing service.
package: Optional package name to look up for types.
scope: Scope containing available types.
index: Index of the method in the service.
Returns:
An initialized MethodDescriptor object.
R R R7 R� t containing_servicet
input_typet output_typeR N( R� R R� R� R� R t MethodDescriptorR R ( R* R� R� Rl Rd R� R7 R� R� ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyR� � s c c ss xl | D]d } t | j � | f Vx | j | j � D] } | Vq4 Wx% | j D] } t | j � | f VqM Wq Wd S( s� Pulls out all the symbols from descriptor protos.
Args:
descriptors: The messages to extract descriptors from.
Yields:
A two element tuple of the type name and descriptor object.
N( Rq R7 Rz R� R� ( R* t descriptorsR: RV Rs ( ( sC /usr/lib/python2.7/site-packages/google/protobuf/descriptor_pool.pyRz � s
c c sB x; | D]3 } | j | � } | Vx | j D] } | Vq+ Wq Wd S( s� Recursively finds dependencies for file protos.
Args:
dependencies: The names of the files being depended on.
Yields:
Each direct and indirect dependency.
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c C sr | | k rj t | � j d � } xF | rf d j | | g � } | | k rV | } Pq$ | j d � q$ Wn | | S( s? Finds a given type name in the current scope.
Args:
package: The package the proto should be located in.
type_name: The name of the type to be found in the scope.
scope: Dict mapping short and full symbols to message and enum types.
Returns:
The descriptor for the requested type.
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