Geohash.encode_to_bits

You're seeing just the function encode_to_bits, go back to Geohash module for more information.
Link to this function

encode_to_bits(lat, lon, bits_length)

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Encodes given coordinates to a bitstring of length bits_length.

Examples

iex> Geohash.encode_to_bits(42.6, -5.6, 25)
<<0b0110111111110000010000010::25>>