# Path: blendergltf/exporters/base.py
# class BaseExporter:
#     gltf_key = ''
#     blender_key = ''
# 
#     @classmethod
#     def get_custom_properties(cls, blender_data):
#         custom_props = {
#             key: value.to_list() if hasattr(value, 'to_list') else value
#             for key, value in blender_data.items()
#             if key not in _IGNORED_CUSTOM_PROPS
#         }
# 
#         custom_props = {
#             key: value for key, value in custom_props.items()
#             if _is_serializable(value)
#         }
# 
#         return custom_props
# 
#     @classmethod
#     def check(cls, state, blender_data):
#         return True
# 
#     @classmethod
#     def default(cls, state, blender_data):
#         return {
#             'name': blender_data.name
#         }
# 
#     @classmethod
#     def export(cls, state, blender_data):
#         return {}
# 
# Path: blendergltf/exporters/common.py
# class Reference:
#     __slots__ = (
#         "blender_type",
#         "blender_name",
#         "source",
#         "prop",
#         "value",
#     )
# 
#     def __init__(self, blender_type, blender_name, source, prop):
#         self.blender_type = blender_type
#         self.blender_name = blender_name
#         self.source = source
#         self.prop = prop
#         self.value = None
# 
#     def __str__(self):
#         return json.dumps([self.blender_type, self.blender_name, self.value])


from distutils.version import StrictVersion as Version
from .base import BaseExporter
from .common import (
    Reference,
)
            if emissive_text and emissive_text in input_textures:
                gltf['emissiveTexture'] = {
                    'texCoord': pbr_settings.emissive_text_index,
                }
                gltf['emissiveTexture']['index'] = Reference(
                    'textures',
                    pbr_settings.emissive_texture,
                    gltf['emissiveTexture'],
                    'index'
                )
                state['references'].append(gltf['emissiveTexture']['index'])

            normal_text = pbr_settings.normal_texture
            if normal_text and normal_text in input_textures:
                gltf['normalTexture'] = {
                    'texCoord': pbr_settings.normal_text_index,
                }
                gltf['normalTexture']['index'] = Reference(
                    'textures',
                    pbr_settings.normal_texture,
                    gltf['normalTexture'],
                    'index'
                )
                state['references'].append(gltf['normalTexture']['index'])

            occlusion_text = pbr_settings.occlusion_texture
            if occlusion_text and occlusion_text in input_textures:
                gltf['occlusionTexture'] = {
                    'texCoord': pbr_settings.occlusion_text_index,
                }

# Path: blendergltf/exporters/base.py
# class BaseExporter:
#     gltf_key = ''
#     blender_key = ''
# 
#     @classmethod
#     def get_custom_properties(cls, blender_data):
#         custom_props = {
#             key: value.to_list() if hasattr(value, 'to_list') else value
#             for key, value in blender_data.items()
#             if key not in _IGNORED_CUSTOM_PROPS
#         }
# 
#         custom_props = {
#             key: value for key, value in custom_props.items()
#             if _is_serializable(value)
#         }
# 
#         return custom_props
# 
#     @classmethod
#     def check(cls, state, blender_data):
#         return True
# 
#     @classmethod
#     def default(cls, state, blender_data):
#         return {
#             'name': blender_data.name
#         }
# 
#     @classmethod
#     def export(cls, state, blender_data):
#         return {}
# 
# Path: blendergltf/exporters/common.py
# class Reference:
#     __slots__ = (
#         "blender_type",
#         "blender_name",
#         "source",
#         "prop",
#         "value",
#     )
# 
#     def __init__(self, blender_type, blender_name, source, prop):
#         self.blender_type = blender_type
#         self.blender_name = blender_name
#         self.source = source
#         self.prop = prop
#         self.value = None
# 
#     def __str__(self):
#         return json.dumps([self.blender_type, self.blender_name, self.value])


# Path: blendergltf/exporters/material.py
from distutils.version import StrictVersion as Version
from .base import BaseExporter
from .common import (
    Reference,
)

            if emissive_text and emissive_text in input_textures:
                gltf['emissiveTexture'] = {
                    'texCoord': pbr_settings.emissive_text_index,
                }
                gltf['emissiveTexture']['index'] = Reference(
                    'textures',
                    pbr_settings.emissive_texture,
                    gltf['emissiveTexture'],
                    'index'
                )
                state['references'].append(gltf['emissiveTexture']['index'])

            normal_text = pbr_settings.normal_texture
            if normal_text and normal_text in input_textures:
                gltf['normalTexture'] = {
                    'texCoord': pbr_settings.normal_text_index,
                }
                gltf['normalTexture']['index'] = Reference(
                    'textures',
                    pbr_settings.normal_texture,
                    gltf['normalTexture'],
                    'index'
                )
                state['references'].append(gltf['normalTexture']['index'])

            occlusion_text = pbr_settings.occlusion_texture
            if occlusion_text and occlusion_text in input_textures:
                gltf['occlusionTexture'] = {
                    'texCoord': pbr_settings.occlusion_text_index,
                }

                gltf['occlusionTexture']['index'] = Reference(