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"""Helpers for DirecTV."""
from typing import Tuple
def parse_channel_number(channel: str) -> Tuple[str, str]:
"""Convert a channel number into its major and minor."""
try:
major, minor = channel.split("-")
except ValueError:
major = channel
minor = "65535"
return major, minor
def combine_channel_number(major: int, minor: int) -> str:
"""Create a combined channel number from its major and minor."""
if minor == 65535:
return str(major)
return "%d-%d" % (major, minor)
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