Even though binary was set false, impl remain binary(16)

[BhuwanPandey]

class UUIDType(ScalarCoercible, types.TypeDecorator):
"""
Stores a UUID in the database natively when it can and falls back to
a BINARY(16) or a CHAR(32) when it can't.

::

    from sqlalchemy_utils import UUIDType
    import uuid

    class User(Base):
        __tablename__ = 'user'

        # Pass `binary=False` to fallback to CHAR instead of BINARY
        id = sa.Column(
            UUIDType(binary=False),
            primary_key=True,
            default=uuid.uuid4
        )
"""

// value for impl remain same on binary = False

impl = types.BINARY(16)

python_type = uuid.UUID

cache_ok = True

def __init__(self, binary=True, native=True):
    """
    :param binary: Whether to use a BINARY(16) or CHAR(32) fallback.
    """
    self.binary = binary
    self.native = native

def __repr__(self):
    return util.generic_repr(self)

def load_dialect_impl(self, dialect):

    if self.native and dialect.name in ('postgresql', 'cockroachdb'):
        # Use the native UUID type.
        return dialect.type_descriptor(postgresql.UUID())

    if dialect.name == 'mssql' and self.native:
        # Use the native UNIQUEIDENTIFIER type.
        return dialect.type_descriptor(mssql.UNIQUEIDENTIFIER())

    else:
        # Fallback to either a BINARY or a CHAR.
        kind = self.impl if self.binary else types.CHAR(32)
        return dialect.type_descriptor(kind)