[[package]]
name = "A"
version = "1.0"
description = ""
optional = true
python-versions = "*"
groups = ["main"]
markers = 'extra == "foo"'
files = []

[[package]]
name = "B"
version = "1.1"
description = ""
optional = false
python-versions = "*"
groups = ["main"]
markers = 'sys_platform == "custom"'
files = []

[[package]]
name = "C"
version = "1.3"
description = ""
optional = false
python-versions = "*"
groups = ["main"]
markers = 'sys_platform == "darwin"'
files = []

[package.dependencies]
D = "^1.2"

[[package]]
name = "D"
version = "1.4"
description = ""
optional = false
python-versions = "*"
groups = ["main"]
markers = 'sys_platform == "darwin"'
files = []

[extras]
foo = ["A"]

[metadata]
python-versions = "*"
lock-version = "2.1"
content-hash = "123456789"
