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"""Common constants shared across DeepVariant's codebase.

This file is for very general constants in the code that end up needing to be

accessed in a variety of places, often in live code as well as throughout the

code in tests.

"""

# Default width [in basepairs] for our DeepVariant data tensor.

PILEUP_DEFAULT_WIDTH = 221

# Default height [in rows] for our DeepVariant data tensor.

PILEUP_DEFAULT_HEIGHT = 300

# Default height [in rows] for our DeepVariant parent data tensor.

PILEUP_DEFAULT_HEIGHT_PARENT = 100

# Default height [in rows] for our DeepVariant child data tensor.

PILEUP_DEFAULT_HEIGHT_CHILD = 100

# Not a default because it's hard-coded into the code.

PILEUP_NUM_CHANNELS = 6

# The dimensions of a pileup image tensor as height x width x rank.

PILEUP_DEFAULT_DIMS = [

    PILEUP_DEFAULT_HEIGHT,

    PILEUP_DEFAULT_WIDTH,

    PILEUP_NUM_CHANNELS,

]

# Number of classes represented in the data set. The three classes are

# homozygous reference (0), heterozygous (1) and homozygous alternative (2).

NUM_CLASSES = 3